21017040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:465

約数の個数: 160

約数和(自身を含む): 74995200

約数和(自身を除く): 53978160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 33, 38, 40, 44, 48, 55, 57, 60, 66, 76, 80, 88, 95, 110, 114, 120, 132, 152, 165, 176, 190, 209, 220, 228, 240, 264, 285, 304, 330, 380, 418, 419, 440, 456, 528, 570, 627, 660, 760, 836, 838, 880, 912, 1045, 1140, 1254, 1257, 1320, 1520, 1672, 1676, 2090, 2095, 2280, 2508, 2514, 2640, 3135, 3344, 3352, 4180, 4190, 4560, 4609, 5016, 5028, 6270, 6285, 6704, 7961, 8360, 8380, 9218, 10032, 10056, 12540, 12570, 13827, 15922, 16720, 16760, 18436, 20112, 23045, 23883, 25080, 25140, 27654, 31844, 33520, 36872, 39805, 46090, 47766, 50160, 50280, 55308, 63688, 69135, 73744, 79610, 87571, 92180, 95532, 100560, 110616, 119415, 127376, 138270, 159220, 175142, 184360, 191064, 221232, 238830, 262713, 276540, 318440, 350284, 368720, 382128, 437855, 477660, 525426, 553080, 636880, 700568, 875710, 955320, 1050852, 1106160, 1313565, 1401136, 1751420, 1910640, 2101704, 2627130, 3502840, 4203408, 5254260, 7005680, 10508520, 21017040]

約数ペア:

[(1, 21017040), (2, 10508520), (3, 7005680), (4, 5254260), (5, 4203408), (6, 3502840), (8, 2627130), (10, 2101704), (11, 1910640), (12, 1751420), (15, 1401136), (16, 1313565), (19, 1106160), (20, 1050852), (22, 955320), (24, 875710), (30, 700568), (33, 636880), (38, 553080), (40, 525426), (44, 477660), (48, 437855), (55, 382128), (57, 368720), (60, 350284), (66, 318440), (76, 276540), (80, 262713), (88, 238830), (95, 221232), (110, 191064), (114, 184360), (120, 175142), (132, 159220), (152, 138270), (165, 127376), (176, 119415), (190, 110616), (209, 100560), (220, 95532), (228, 92180), (240, 87571), (264, 79610), (285, 73744), (304, 69135), (330, 63688), (380, 55308), (418, 50280), (419, 50160), (440, 47766), (456, 46090), (528, 39805), (570, 36872), (627, 33520), (660, 31844), (760, 27654), (836, 25140), (838, 25080), (880, 23883), (912, 23045), (1045, 20112), (1140, 18436), (1254, 16760), (1257, 16720), (1320, 15922), (1520, 13827), (1672, 12570), (1676, 12540), (2090, 10056), (2095, 10032), (2280, 9218), (2508, 8380), (2514, 8360), (2640, 7961), (3135, 6704), (3344, 6285), (3352, 6270), (4180, 5028), (4190, 5016), (4560, 4609)]