21028578

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{152381}}^1$

素因数の和:152409

約数の個数: 16

約数和(自身を含む): 43886016

約数和(自身を除く): 22857438

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 152381, 304762, 457143, 914286, 3504763, 7009526, 10514289, 21028578]

約数ペア:

[(1, 21028578), (2, 10514289), (3, 7009526), (6, 3504763), (23, 914286), (46, 457143), (69, 304762), (138, 152381)]