21909920

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3701}}^1$

素因数の和:3753

約数の個数: 48

約数和(自身を含む): 53175528

約数和(自身を除く): 31265608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3701, 5920, 7402, 14804, 18505, 29608, 37010, 59216, 74020, 118432, 136937, 148040, 273874, 296080, 547748, 592160, 684685, 1095496, 1369370, 2190992, 2738740, 4381984, 5477480, 10954960, 21909920]

約数ペア:

[(1, 21909920), (2, 10954960), (4, 5477480), (5, 4381984), (8, 2738740), (10, 2190992), (16, 1369370), (20, 1095496), (32, 684685), (37, 592160), (40, 547748), (74, 296080), (80, 273874), (148, 148040), (160, 136937), (185, 118432), (296, 74020), (370, 59216), (592, 37010), (740, 29608), (1184, 18505), (1480, 14804), (2960, 7402), (3701, 5920)]