31418751

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 53893728

約数和(自身を除く): 22474977

約数列:

[1, 3, 7, 13, 21, 39, 41, 49, 91, 123, 147, 273, 287, 401, 533, 637, 861, 1203, 1599, 1911, 2009, 2807, 3731, 5213, 6027, 8421, 11193, 15639, 16441, 19649, 26117, 36491, 49323, 58947, 78351, 109473, 115087, 213733, 255437, 345261, 641199, 766311, 805609, 1496131, 2416827, 4488393, 10472917, 31418751]

約数ペア:

[(1, 31418751), (3, 10472917), (7, 4488393), (13, 2416827), (21, 1496131), (39, 805609), (41, 766311), (49, 641199), (91, 345261), (123, 255437), (147, 213733), (273, 115087), (287, 109473), (401, 78351), (533, 58947), (637, 49323), (861, 36491), (1203, 26117), (1599, 19649), (1911, 16441), (2009, 15639), (2807, 11193), (3731, 8421), (5213, 6027)]