21301680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:283

約数の個数: 160

約数和(自身を含む): 73281024

約数和(自身を除く): 51979344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 23, 24, 30, 34, 40, 46, 48, 51, 60, 68, 69, 80, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 227, 230, 240, 255, 272, 276, 340, 345, 368, 391, 408, 454, 460, 510, 552, 680, 681, 690, 782, 816, 908, 920, 1020, 1104, 1135, 1173, 1360, 1362, 1380, 1564, 1816, 1840, 1955, 2040, 2270, 2346, 2724, 2760, 3128, 3405, 3632, 3859, 3910, 4080, 4540, 4692, 5221, 5448, 5520, 5865, 6256, 6810, 7718, 7820, 9080, 9384, 10442, 10896, 11577, 11730, 13620, 15436, 15640, 15663, 18160, 18768, 19295, 20884, 23154, 23460, 26105, 27240, 30872, 31280, 31326, 38590, 41768, 46308, 46920, 52210, 54480, 57885, 61744, 62652, 77180, 78315, 83536, 88757, 92616, 93840, 104420, 115770, 125304, 154360, 156630, 177514, 185232, 208840, 231540, 250608, 266271, 308720, 313260, 355028, 417680, 443785, 463080, 532542, 626520, 710056, 887570, 926160, 1065084, 1253040, 1331355, 1420112, 1775140, 2130168, 2662710, 3550280, 4260336, 5325420, 7100560, 10650840, 21301680]

約数ペア:

[(1, 21301680), (2, 10650840), (3, 7100560), (4, 5325420), (5, 4260336), (6, 3550280), (8, 2662710), (10, 2130168), (12, 1775140), (15, 1420112), (16, 1331355), (17, 1253040), (20, 1065084), (23, 926160), (24, 887570), (30, 710056), (34, 626520), (40, 532542), (46, 463080), (48, 443785), (51, 417680), (60, 355028), (68, 313260), (69, 308720), (80, 266271), (85, 250608), (92, 231540), (102, 208840), (115, 185232), (120, 177514), (136, 156630), (138, 154360), (170, 125304), (184, 115770), (204, 104420), (227, 93840), (230, 92616), (240, 88757), (255, 83536), (272, 78315), (276, 77180), (340, 62652), (345, 61744), (368, 57885), (391, 54480), (408, 52210), (454, 46920), (460, 46308), (510, 41768), (552, 38590), (680, 31326), (681, 31280), (690, 30872), (782, 27240), (816, 26105), (908, 23460), (920, 23154), (1020, 20884), (1104, 19295), (1135, 18768), (1173, 18160), (1360, 15663), (1362, 15640), (1380, 15436), (1564, 13620), (1816, 11730), (1840, 11577), (1955, 10896), (2040, 10442), (2270, 9384), (2346, 9080), (2724, 7820), (2760, 7718), (3128, 6810), (3405, 6256), (3632, 5865), (3859, 5520), (3910, 5448), (4080, 5221), (4540, 4692)]