21911640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:521

約数の個数: 128

約数和(自身を含む): 72783360

約数和(自身を除く): 50871720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 23, 24, 30, 34, 40, 46, 51, 60, 68, 69, 85, 92, 102, 115, 120, 136, 138, 170, 184, 204, 230, 255, 276, 340, 345, 391, 408, 460, 467, 510, 552, 680, 690, 782, 920, 934, 1020, 1173, 1380, 1401, 1564, 1868, 1955, 2040, 2335, 2346, 2760, 2802, 3128, 3736, 3910, 4670, 4692, 5604, 5865, 7005, 7820, 7939, 9340, 9384, 10741, 11208, 11730, 14010, 15640, 15878, 18680, 21482, 23460, 23817, 28020, 31756, 32223, 39695, 42964, 46920, 47634, 53705, 56040, 63512, 64446, 79390, 85928, 95268, 107410, 119085, 128892, 158780, 161115, 182597, 190536, 214820, 238170, 257784, 317560, 322230, 365194, 429640, 476340, 547791, 644460, 730388, 912985, 952680, 1095582, 1288920, 1460776, 1825970, 2191164, 2738955, 3651940, 4382328, 5477910, 7303880, 10955820, 21911640]

約数ペア:

[(1, 21911640), (2, 10955820), (3, 7303880), (4, 5477910), (5, 4382328), (6, 3651940), (8, 2738955), (10, 2191164), (12, 1825970), (15, 1460776), (17, 1288920), (20, 1095582), (23, 952680), (24, 912985), (30, 730388), (34, 644460), (40, 547791), (46, 476340), (51, 429640), (60, 365194), (68, 322230), (69, 317560), (85, 257784), (92, 238170), (102, 214820), (115, 190536), (120, 182597), (136, 161115), (138, 158780), (170, 128892), (184, 119085), (204, 107410), (230, 95268), (255, 85928), (276, 79390), (340, 64446), (345, 63512), (391, 56040), (408, 53705), (460, 47634), (467, 46920), (510, 42964), (552, 39695), (680, 32223), (690, 31756), (782, 28020), (920, 23817), (934, 23460), (1020, 21482), (1173, 18680), (1380, 15878), (1401, 15640), (1564, 14010), (1868, 11730), (1955, 11208), (2040, 10741), (2335, 9384), (2346, 9340), (2760, 7939), (2802, 7820), (3128, 7005), (3736, 5865), (3910, 5604), (4670, 4692)]