21309310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{1601}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 42215904

約数和(自身を除く): 20906594

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 1331, 1601, 2662, 3202, 6655, 8005, 13310, 16010, 17611, 35222, 88055, 176110, 193721, 387442, 968605, 1937210, 2130931, 4261862, 10654655, 21309310]

約数ペア:

[(1, 21309310), (2, 10654655), (5, 4261862), (10, 2130931), (11, 1937210), (22, 968605), (55, 387442), (110, 193721), (121, 176110), (242, 88055), (605, 35222), (1210, 17611), (1331, 16010), (1601, 13310), (2662, 8005), (3202, 6655)]