19711845

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 35747712

約数和(自身を除く): 16035867

約数列:

[1, 3, 5, 9, 15, 43, 45, 61, 129, 167, 183, 215, 305, 387, 501, 549, 645, 835, 915, 1503, 1935, 2505, 2623, 2745, 7181, 7515, 7869, 10187, 13115, 21543, 23607, 30561, 35905, 39345, 50935, 64629, 91683, 107715, 118035, 152805, 323145, 438041, 458415, 1314123, 2190205, 3942369, 6570615, 19711845]

約数ペア:

[(1, 19711845), (3, 6570615), (5, 3942369), (9, 2190205), (15, 1314123), (43, 458415), (45, 438041), (61, 323145), (129, 152805), (167, 118035), (183, 107715), (215, 91683), (305, 64629), (387, 50935), (501, 39345), (549, 35905), (645, 30561), (835, 23607), (915, 21543), (1503, 13115), (1935, 10187), (2505, 7869), (2623, 7515), (2745, 7181)]