21028630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 46287360

約数和(自身を除く): 25258730

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 97, 133, 163, 190, 194, 266, 326, 485, 665, 679, 815, 970, 1141, 1330, 1358, 1630, 1843, 2282, 3097, 3395, 3686, 5705, 6194, 6790, 9215, 11410, 12901, 15485, 15811, 18430, 21679, 25802, 30970, 31622, 43358, 64505, 79055, 108395, 110677, 129010, 158110, 216790, 221354, 300409, 553385, 600818, 1106770, 1502045, 2102863, 3004090, 4205726, 10514315, 21028630]

約数ペア:

[(1, 21028630), (2, 10514315), (5, 4205726), (7, 3004090), (10, 2102863), (14, 1502045), (19, 1106770), (35, 600818), (38, 553385), (70, 300409), (95, 221354), (97, 216790), (133, 158110), (163, 129010), (190, 110677), (194, 108395), (266, 79055), (326, 64505), (485, 43358), (665, 31622), (679, 30970), (815, 25802), (970, 21679), (1141, 18430), (1330, 15811), (1358, 15485), (1630, 12901), (1843, 11410), (2282, 9215), (3097, 6790), (3395, 6194), (3686, 5705)]