21565544

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2693}}^1$

素因数の和:2730

約数の個数: 64

約数和(自身を含む): 54311040

約数和(自身を除く): 32745496

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2693, 4004, 5386, 8008, 10772, 18851, 21544, 29623, 35009, 37702, 59246, 70018, 75404, 118492, 140036, 150808, 207361, 236984, 245063, 280072, 385099, 414722, 490126, 770198, 829444, 980252, 1540396, 1658888, 1960504, 2695693, 3080792, 5391386, 10782772, 21565544]

約数ペア:

[(1, 21565544), (2, 10782772), (4, 5391386), (7, 3080792), (8, 2695693), (11, 1960504), (13, 1658888), (14, 1540396), (22, 980252), (26, 829444), (28, 770198), (44, 490126), (52, 414722), (56, 385099), (77, 280072), (88, 245063), (91, 236984), (104, 207361), (143, 150808), (154, 140036), (182, 118492), (286, 75404), (308, 70018), (364, 59246), (572, 37702), (616, 35009), (728, 29623), (1001, 21544), (1144, 18851), (2002, 10772), (2693, 8008), (4004, 5386)]