21800090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{317}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 44315208

約数和(自身を除く): 22515118

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 317, 529, 598, 634, 1058, 1495, 1585, 2645, 2990, 3170, 4121, 5290, 6877, 7291, 8242, 13754, 14582, 20605, 34385, 36455, 41210, 68770, 72910, 94783, 167693, 189566, 335386, 473915, 838465, 947830, 1676930, 2180009, 4360018, 10900045, 21800090]

約数ペア:

[(1, 21800090), (2, 10900045), (5, 4360018), (10, 2180009), (13, 1676930), (23, 947830), (26, 838465), (46, 473915), (65, 335386), (115, 189566), (130, 167693), (230, 94783), (299, 72910), (317, 68770), (529, 41210), (598, 36455), (634, 34385), (1058, 20605), (1495, 14582), (1585, 13754), (2645, 8242), (2990, 7291), (3170, 6877), (4121, 5290)]