21651754

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{4159}}^1$

素因数の和:4317

約数の個数: 16

約数和(自身を含む): 34444800

約数和(自身を除く): 12793046

約数列:

[1, 2, 19, 38, 137, 274, 2603, 4159, 5206, 8318, 79021, 158042, 569783, 1139566, 10825877, 21651754]

約数ペア:

[(1, 21651754), (2, 10825877), (19, 1139566), (38, 569783), (137, 158042), (274, 79021), (2603, 8318), (4159, 5206)]