15216747

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 25213440

約数和(自身を除く): 9996693

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 273, 401, 417, 973, 1203, 1807, 2807, 2919, 5213, 5421, 8421, 12649, 15639, 36491, 37947, 55739, 109473, 167217, 390173, 724607, 1170519, 2173821, 5072249, 15216747]

約数ペア:

[(1, 15216747), (3, 5072249), (7, 2173821), (13, 1170519), (21, 724607), (39, 390173), (91, 167217), (139, 109473), (273, 55739), (401, 37947), (417, 36491), (973, 15639), (1203, 12649), (1807, 8421), (2807, 5421), (2919, 5213)]