21315454

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{2347}}^1$

素因数の和:2607

約数の個数: 16

約数和(自身を含む): 33811200

約数和(自身を除く): 12495746

約数列:

[1, 2, 19, 38, 239, 478, 2347, 4541, 4694, 9082, 44593, 89186, 560933, 1121866, 10657727, 21315454]

約数ペア:

[(1, 21315454), (2, 10657727), (19, 1121866), (38, 560933), (239, 89186), (478, 44593), (2347, 9082), (4541, 4694)]