21396064

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1127

約数の個数: 48

約数和(自身を含む): 45849888

約数和(自身を除く): 24453824

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 37, 68, 74, 136, 148, 272, 296, 544, 592, 629, 1063, 1184, 1258, 2126, 2516, 4252, 5032, 8504, 10064, 17008, 18071, 20128, 34016, 36142, 39331, 72284, 78662, 144568, 157324, 289136, 314648, 578272, 629296, 668627, 1258592, 1337254, 2674508, 5349016, 10698032, 21396064]

約数ペア:

[(1, 21396064), (2, 10698032), (4, 5349016), (8, 2674508), (16, 1337254), (17, 1258592), (32, 668627), (34, 629296), (37, 578272), (68, 314648), (74, 289136), (136, 157324), (148, 144568), (272, 78662), (296, 72284), (544, 39331), (592, 36142), (629, 34016), (1063, 20128), (1184, 18071), (1258, 17008), (2126, 10064), (2516, 8504), (4252, 5032)]