20777156

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{491}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 37195200

約数和(自身を除く): 16418044

約数列:

[1, 2, 4, 71, 142, 149, 284, 298, 491, 596, 982, 1964, 10579, 21158, 34861, 42316, 69722, 73159, 139444, 146318, 292636, 5194289, 10388578, 20777156]

約数ペア:

[(1, 20777156), (2, 10388578), (4, 5194289), (71, 292636), (142, 146318), (149, 139444), (284, 73159), (298, 69722), (491, 42316), (596, 34861), (982, 21158), (1964, 10579)]