21142770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{811}}^1$

素因数の和:911

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 34982670

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 79, 110, 158, 165, 237, 330, 395, 474, 790, 811, 869, 1185, 1622, 1738, 2370, 2433, 2607, 4055, 4345, 4866, 5214, 8110, 8690, 8921, 12165, 13035, 17842, 24330, 26070, 26763, 44605, 53526, 64069, 89210, 128138, 133815, 192207, 267630, 320345, 384414, 640690, 704759, 961035, 1409518, 1922070, 2114277, 3523795, 4228554, 7047590, 10571385, 21142770]

約数ペア:

[(1, 21142770), (2, 10571385), (3, 7047590), (5, 4228554), (6, 3523795), (10, 2114277), (11, 1922070), (15, 1409518), (22, 961035), (30, 704759), (33, 640690), (55, 384414), (66, 320345), (79, 267630), (110, 192207), (158, 133815), (165, 128138), (237, 89210), (330, 64069), (395, 53526), (474, 44605), (790, 26763), (811, 26070), (869, 24330), (1185, 17842), (1622, 13035), (1738, 12165), (2370, 8921), (2433, 8690), (2607, 8110), (4055, 5214), (4345, 4866)]