21167797725

素因数分解:

$3^2\times 5^2\times {\mathrm{47}}^2\times {\mathrm{42589}}^1$

素因数の和:42699

約数の個数: 54

約数和(自身を含む): 38738628890

約数和(自身を除く): 17570831165

約数列:

[1, 3, 5, 9, 15, 25, 45, 47, 75, 141, 225, 235, 423, 705, 1175, 2115, 2209, 3525, 6627, 10575, 11045, 19881, 33135, 42589, 55225, 99405, 127767, 165675, 212945, 383301, 497025, 638835, 1064725, 1916505, 2001683, 3194175, 6005049, 9582525, 10008415, 18015147, 30025245, 50042075, 90075735, 94079101, 150126225, 282237303, 450378675, 470395505, 846711909, 1411186515, 2351977525, 4233559545, 7055932575, 21167797725]

約数ペア:

[(1, 21167797725), (3, 7055932575), (5, 4233559545), (9, 2351977525), (15, 1411186515), (25, 846711909), (45, 470395505), (47, 450378675), (75, 282237303), (141, 150126225), (225, 94079101), (235, 90075735), (423, 50042075), (705, 30025245), (1175, 18015147), (2115, 10008415), (2209, 9582525), (3525, 6005049), (6627, 3194175), (10575, 2001683), (11045, 1916505), (19881, 1064725), (33135, 638835), (42589, 497025), (55225, 383301), (99405, 212945), (127767, 165675)]