21025091750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{59351}}^1$

素因数の和:59490

約数の個数: 64

約数和(自身を含む): 42776173440

約数和(自身を除く): 21751081690

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 109, 125, 130, 218, 250, 325, 545, 650, 1090, 1417, 1625, 2725, 2834, 3250, 5450, 7085, 13625, 14170, 27250, 35425, 59351, 70850, 118702, 177125, 296755, 354250, 593510, 771563, 1483775, 1543126, 2967550, 3857815, 6469259, 7418875, 7715630, 12938518, 14837750, 19289075, 32346295, 38578150, 64692590, 84100367, 96445375, 161731475, 168200734, 192890750, 323462950, 420501835, 808657375, 841003670, 1617314750, 2102509175, 4205018350, 10512545875, 21025091750]

約数ペア:

[(1, 21025091750), (2, 10512545875), (5, 4205018350), (10, 2102509175), (13, 1617314750), (25, 841003670), (26, 808657375), (50, 420501835), (65, 323462950), (109, 192890750), (125, 168200734), (130, 161731475), (218, 96445375), (250, 84100367), (325, 64692590), (545, 38578150), (650, 32346295), (1090, 19289075), (1417, 14837750), (1625, 12938518), (2725, 7715630), (2834, 7418875), (3250, 6469259), (5450, 3857815), (7085, 2967550), (13625, 1543126), (14170, 1483775), (27250, 771563), (35425, 593510), (59351, 354250), (70850, 296755), (118702, 177125)]