20952525

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 38301120

約数和(自身を除く): 17348595

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 109, 165, 233, 275, 327, 545, 699, 825, 1165, 1199, 1635, 2563, 2725, 3495, 3597, 5825, 5995, 7689, 8175, 12815, 17475, 17985, 25397, 29975, 38445, 64075, 76191, 89925, 126985, 192225, 279367, 380955, 634925, 838101, 1396835, 1904775, 4190505, 6984175, 20952525]

約数ペア:

[(1, 20952525), (3, 6984175), (5, 4190505), (11, 1904775), (15, 1396835), (25, 838101), (33, 634925), (55, 380955), (75, 279367), (109, 192225), (165, 126985), (233, 89925), (275, 76191), (327, 64075), (545, 38445), (699, 29975), (825, 25397), (1165, 17985), (1199, 17475), (1635, 12815), (2563, 8175), (2725, 7689), (3495, 5995), (3597, 5825)]