21137844

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1489}}^1$

素因数の和:1529

約数の個数: 72

約数和(自身を含む): 61078080

約数和(自身を除く): 39940236

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 169, 182, 273, 338, 364, 507, 546, 676, 1014, 1092, 1183, 1489, 2028, 2366, 2978, 3549, 4467, 4732, 5956, 7098, 8934, 10423, 14196, 17868, 19357, 20846, 31269, 38714, 41692, 58071, 62538, 77428, 116142, 125076, 135499, 232284, 251641, 270998, 406497, 503282, 541996, 754923, 812994, 1006564, 1509846, 1625988, 1761487, 3019692, 3522974, 5284461, 7045948, 10568922, 21137844]

約数ペア:

[(1, 21137844), (2, 10568922), (3, 7045948), (4, 5284461), (6, 3522974), (7, 3019692), (12, 1761487), (13, 1625988), (14, 1509846), (21, 1006564), (26, 812994), (28, 754923), (39, 541996), (42, 503282), (52, 406497), (78, 270998), (84, 251641), (91, 232284), (156, 135499), (169, 125076), (182, 116142), (273, 77428), (338, 62538), (364, 58071), (507, 41692), (546, 38714), (676, 31269), (1014, 20846), (1092, 19357), (1183, 17868), (1489, 14196), (2028, 10423), (2366, 8934), (2978, 7098), (3549, 5956), (4467, 4732)]