20889632

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 42661080

約数和(自身を除く): 21771448

約数列:

[1, 2, 4, 8, 16, 32, 53, 106, 109, 113, 212, 218, 226, 424, 436, 452, 848, 872, 904, 1696, 1744, 1808, 3488, 3616, 5777, 5989, 11554, 11978, 12317, 23108, 23956, 24634, 46216, 47912, 49268, 92432, 95824, 98536, 184864, 191648, 197072, 394144, 652801, 1305602, 2611204, 5222408, 10444816, 20889632]

約数ペア:

[(1, 20889632), (2, 10444816), (4, 5222408), (8, 2611204), (16, 1305602), (32, 652801), (53, 394144), (106, 197072), (109, 191648), (113, 184864), (212, 98536), (218, 95824), (226, 92432), (424, 49268), (436, 47912), (452, 46216), (848, 24634), (872, 23956), (904, 23108), (1696, 12317), (1744, 11978), (1808, 11554), (3488, 5989), (3616, 5777)]