21890998

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1\times {\mathrm{661}}^1$

素因数の和:1263

約数の個数: 16

約数和(自身を含む): 34079760

約数和(自身を除く): 12188762

約数列:

[1, 2, 29, 58, 571, 661, 1142, 1322, 16559, 19169, 33118, 38338, 377431, 754862, 10945499, 21890998]

約数ペア:

[(1, 21890998), (2, 10945499), (29, 754862), (58, 377431), (571, 38338), (661, 33118), (1142, 19169), (1322, 16559)]