21972378

素因数分解:

$2^1\times 3^1\times {\mathrm{659}}^1\times {\mathrm{5557}}^1$

素因数の和:6221

約数の個数: 16

約数和(自身を含む): 44019360

約数和(自身を除く): 22046982

約数列:

[1, 2, 3, 6, 659, 1318, 1977, 3954, 5557, 11114, 16671, 33342, 3662063, 7324126, 10986189, 21972378]

約数ペア:

[(1, 21972378), (2, 10986189), (3, 7324126), (6, 3662063), (659, 33342), (1318, 16671), (1977, 11114), (3954, 5557)]