20973498

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:491

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31281222

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 107, 182, 214, 273, 321, 359, 546, 642, 718, 749, 1077, 1391, 1498, 2154, 2247, 2513, 2782, 4173, 4494, 4667, 5026, 7539, 8346, 9334, 9737, 14001, 15078, 19474, 28002, 29211, 32669, 38413, 58422, 65338, 76826, 98007, 115239, 196014, 230478, 268891, 499369, 537782, 806673, 998738, 1498107, 1613346, 2996214, 3495583, 6991166, 10486749, 20973498]

約数ペア:

[(1, 20973498), (2, 10486749), (3, 6991166), (6, 3495583), (7, 2996214), (13, 1613346), (14, 1498107), (21, 998738), (26, 806673), (39, 537782), (42, 499369), (78, 268891), (91, 230478), (107, 196014), (182, 115239), (214, 98007), (273, 76826), (321, 65338), (359, 58422), (546, 38413), (642, 32669), (718, 29211), (749, 28002), (1077, 19474), (1391, 15078), (1498, 14001), (2154, 9737), (2247, 9334), (2513, 8346), (2782, 7539), (4173, 5026), (4494, 4667)]