21335710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2657}}^1$

素因数の和:2748

約数の個数: 32

約数和(自身を含む): 42485472

約数和(自身を除く): 21149762

約数列:

[1, 2, 5, 10, 11, 22, 55, 73, 110, 146, 365, 730, 803, 1606, 2657, 4015, 5314, 8030, 13285, 26570, 29227, 58454, 146135, 193961, 292270, 387922, 969805, 1939610, 2133571, 4267142, 10667855, 21335710]

約数ペア:

[(1, 21335710), (2, 10667855), (5, 4267142), (10, 2133571), (11, 1939610), (22, 969805), (55, 387922), (73, 292270), (110, 193961), (146, 146135), (365, 58454), (730, 29227), (803, 26570), (1606, 13285), (2657, 8030), (4015, 5314)]