21135430

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{233}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 39222144

約数和(自身を除く): 18086714

約数列:

[1, 2, 5, 10, 47, 94, 193, 233, 235, 386, 466, 470, 965, 1165, 1930, 2330, 9071, 10951, 18142, 21902, 44969, 45355, 54755, 89938, 90710, 109510, 224845, 449690, 2113543, 4227086, 10567715, 21135430]

約数ペア:

[(1, 21135430), (2, 10567715), (5, 4227086), (10, 2113543), (47, 449690), (94, 224845), (193, 109510), (233, 90710), (235, 89938), (386, 54755), (466, 45355), (470, 44969), (965, 21902), (1165, 18142), (1930, 10951), (2330, 9071)]