21650865

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{461}}^1$

素因数の和:601

約数の個数: 32

約数和(自身を含む): 36191232

約数和(自身を除く): 14540367

約数列:

[1, 3, 5, 15, 31, 93, 101, 155, 303, 461, 465, 505, 1383, 1515, 2305, 3131, 6915, 9393, 14291, 15655, 42873, 46561, 46965, 71455, 139683, 214365, 232805, 698415, 1443391, 4330173, 7216955, 21650865]

約数ペア:

[(1, 21650865), (3, 7216955), (5, 4330173), (15, 1443391), (31, 698415), (93, 232805), (101, 214365), (155, 139683), (303, 71455), (461, 46965), (465, 46561), (505, 42873), (1383, 15655), (1515, 14291), (2305, 9393), (3131, 6915)]