19791970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{1487}}^1$

素因数の和:1527

約数の個数: 32

約数和(自身を含む): 39211776

約数和(自身を除く): 19419806

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 1331, 1487, 2662, 2974, 6655, 7435, 13310, 14870, 16357, 32714, 81785, 163570, 179927, 359854, 899635, 1799270, 1979197, 3958394, 9895985, 19791970]

約数ペア:

[(1, 19791970), (2, 9895985), (5, 3958394), (10, 1979197), (11, 1799270), (22, 899635), (55, 359854), (110, 179927), (121, 163570), (242, 81785), (605, 32714), (1210, 16357), (1331, 14870), (1487, 13310), (2662, 7435), (2974, 6655)]