21627928

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20327}}^1$

素因数の和:20359

約数の個数: 32

約数和(自身を含む): 48787200

約数和(自身を除く): 27159272

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20327, 40654, 81308, 142289, 162616, 284578, 386213, 569156, 772426, 1138312, 1544852, 2703491, 3089704, 5406982, 10813964, 21627928]

約数ペア:

[(1, 21627928), (2, 10813964), (4, 5406982), (7, 3089704), (8, 2703491), (14, 1544852), (19, 1138312), (28, 772426), (38, 569156), (56, 386213), (76, 284578), (133, 162616), (152, 142289), (266, 81308), (532, 40654), (1064, 20327)]