18631977

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:653

約数の個数: 32

約数和(自身を含む): 30858240

約数和(自身を除く): 12226263

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 417, 491, 973, 1473, 1807, 2919, 3437, 5421, 6383, 10311, 12649, 19149, 37947, 44681, 68249, 134043, 204747, 477743, 887237, 1433229, 2661711, 6210659, 18631977]

約数ペア:

[(1, 18631977), (3, 6210659), (7, 2661711), (13, 1433229), (21, 887237), (39, 477743), (91, 204747), (139, 134043), (273, 68249), (417, 44681), (491, 37947), (973, 19149), (1473, 12649), (1807, 10311), (2919, 6383), (3437, 5421)]