21042250

素因数分解:

$2^1\times 5^3\times {\mathrm{73}}^1\times {\mathrm{1153}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 39965328

約数和(自身を除く): 18923078

約数列:

[1, 2, 5, 10, 25, 50, 73, 125, 146, 250, 365, 730, 1153, 1825, 2306, 3650, 5765, 9125, 11530, 18250, 28825, 57650, 84169, 144125, 168338, 288250, 420845, 841690, 2104225, 4208450, 10521125, 21042250]

約数ペア:

[(1, 21042250), (2, 10521125), (5, 4208450), (10, 2104225), (25, 841690), (50, 420845), (73, 288250), (125, 168338), (146, 144125), (250, 84169), (365, 57650), (730, 28825), (1153, 18250), (1825, 11530), (2306, 9125), (3650, 5765)]