21957156

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^2\times {\mathrm{401}}^1$

素因数の和:443

約数の個数: 90

約数和(自身を含む): 62310402

約数和(自身を除く): 40353246

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 169, 234, 324, 338, 351, 401, 468, 507, 676, 702, 802, 1014, 1053, 1203, 1404, 1521, 1604, 2028, 2106, 2406, 3042, 3609, 4212, 4563, 4812, 5213, 6084, 7218, 9126, 10426, 10827, 13689, 14436, 15639, 18252, 20852, 21654, 27378, 31278, 32481, 43308, 46917, 54756, 62556, 64962, 67769, 93834, 129924, 135538, 140751, 187668, 203307, 271076, 281502, 406614, 422253, 563004, 609921, 813228, 844506, 1219842, 1689012, 1829763, 2439684, 3659526, 5489289, 7319052, 10978578, 21957156]

約数ペア:

[(1, 21957156), (2, 10978578), (3, 7319052), (4, 5489289), (6, 3659526), (9, 2439684), (12, 1829763), (13, 1689012), (18, 1219842), (26, 844506), (27, 813228), (36, 609921), (39, 563004), (52, 422253), (54, 406614), (78, 281502), (81, 271076), (108, 203307), (117, 187668), (156, 140751), (162, 135538), (169, 129924), (234, 93834), (324, 67769), (338, 64962), (351, 62556), (401, 54756), (468, 46917), (507, 43308), (676, 32481), (702, 31278), (802, 27378), (1014, 21654), (1053, 20852), (1203, 18252), (1404, 15639), (1521, 14436), (1604, 13689), (2028, 10827), (2106, 10426), (2406, 9126), (3042, 7218), (3609, 6084), (4212, 5213), (4563, 4812)]