20921406

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{316991}}^1$

素因数の和:317007

約数の個数: 16

約数和(自身を含む): 45646848

約数和(自身を除く): 24725442

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 316991, 633982, 950973, 1901946, 3486901, 6973802, 10460703, 20921406]

約数ペア:

[(1, 20921406), (2, 10460703), (3, 6973802), (6, 3486901), (11, 1901946), (22, 950973), (33, 633982), (66, 316991)]