21154970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1163}}^1$

素因数の和:1294

約数の個数: 32

約数和(自身を含む): 40730688

約数和(自身を除く): 19575718

約数列:

[1, 2, 5, 10, 17, 34, 85, 107, 170, 214, 535, 1070, 1163, 1819, 2326, 3638, 5815, 9095, 11630, 18190, 19771, 39542, 98855, 124441, 197710, 248882, 622205, 1244410, 2115497, 4230994, 10577485, 21154970]

約数ペア:

[(1, 21154970), (2, 10577485), (5, 4230994), (10, 2115497), (17, 1244410), (34, 622205), (85, 248882), (107, 197710), (170, 124441), (214, 98855), (535, 39542), (1070, 19771), (1163, 18190), (1819, 11630), (2326, 9095), (3638, 5815)]