19859895

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{757}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 38312352

約数和(自身を除く): 18452457

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 53, 55, 99, 159, 165, 265, 477, 495, 583, 757, 795, 1749, 2271, 2385, 2915, 3785, 5247, 6813, 8327, 8745, 11355, 24981, 26235, 34065, 40121, 41635, 74943, 120363, 124905, 200605, 361089, 374715, 441331, 601815, 1323993, 1805445, 2206655, 3971979, 6619965, 19859895]

約数ペア:

[(1, 19859895), (3, 6619965), (5, 3971979), (9, 2206655), (11, 1805445), (15, 1323993), (33, 601815), (45, 441331), (53, 374715), (55, 361089), (99, 200605), (159, 124905), (165, 120363), (265, 74943), (477, 41635), (495, 40121), (583, 34065), (757, 26235), (795, 24981), (1749, 11355), (2271, 8745), (2385, 8327), (2915, 6813), (3785, 5247)]