21113575

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 32569344

約数和(自身を除く): 11455769

約数列:

[1, 5, 7, 17, 25, 35, 47, 85, 119, 151, 175, 235, 329, 425, 595, 755, 799, 1057, 1175, 1645, 2567, 2975, 3775, 3995, 5285, 5593, 7097, 8225, 12835, 17969, 19975, 26425, 27965, 35485, 49679, 64175, 89845, 120649, 139825, 177425, 248395, 449225, 603245, 844543, 1241975, 3016225, 4222715, 21113575]

約数ペア:

[(1, 21113575), (5, 4222715), (7, 3016225), (17, 1241975), (25, 844543), (35, 603245), (47, 449225), (85, 248395), (119, 177425), (151, 139825), (175, 120649), (235, 89845), (329, 64175), (425, 49679), (595, 35485), (755, 27965), (799, 26425), (1057, 19975), (1175, 17969), (1645, 12835), (2567, 8225), (2975, 7097), (3775, 5593), (3995, 5285)]