21248788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{6113}}^1$

素因数の和:6207

約数の個数: 24

約数和(自身を含む): 41086080

約数和(自身を除く): 19837292

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 6113, 12226, 24452, 67243, 134486, 268972, 482927, 965854, 1931708, 5312197, 10624394, 21248788]

約数ペア:

[(1, 21248788), (2, 10624394), (4, 5312197), (11, 1931708), (22, 965854), (44, 482927), (79, 268972), (158, 134486), (316, 67243), (869, 24452), (1738, 12226), (3476, 6113)]