21801858

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{279511}}^1$

素因数の和:279529

約数の個数: 16

約数和(自身を含む): 46958016

約数和(自身を除く): 25156158

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 279511, 559022, 838533, 1677066, 3633643, 7267286, 10900929, 21801858]

約数ペア:

[(1, 21801858), (2, 10900929), (3, 7267286), (6, 3633643), (13, 1677066), (26, 838533), (39, 559022), (78, 279511)]