661569399

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{401}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 1043025984

約数和(自身を除く): 381456585

約数列:

[1, 3, 9, 17, 41, 51, 123, 153, 263, 369, 401, 697, 789, 1203, 2091, 2367, 3609, 4471, 6273, 6817, 10783, 13413, 16441, 20451, 32349, 40239, 49323, 61353, 97047, 105463, 147969, 183311, 279497, 316389, 549933, 838491, 949167, 1649799, 1792871, 2515473, 4323983, 5378613, 12971949, 16135839, 38915847, 73507711, 220523133, 661569399]

約数ペア:

[(1, 661569399), (3, 220523133), (9, 73507711), (17, 38915847), (41, 16135839), (51, 12971949), (123, 5378613), (153, 4323983), (263, 2515473), (369, 1792871), (401, 1649799), (697, 949167), (789, 838491), (1203, 549933), (2091, 316389), (2367, 279497), (3609, 183311), (4471, 147969), (6273, 105463), (6817, 97047), (10783, 61353), (13413, 49323), (16441, 40239), (20451, 32349)]