21085610

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 128

約数和(自身を含む): 52254720

約数和(自身を除く): 31169110

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 26, 29, 34, 35, 47, 58, 65, 70, 85, 91, 94, 119, 130, 145, 170, 182, 203, 221, 235, 238, 290, 329, 377, 406, 442, 455, 470, 493, 595, 611, 658, 754, 799, 910, 986, 1015, 1105, 1190, 1222, 1363, 1547, 1598, 1645, 1885, 2030, 2210, 2465, 2639, 2726, 3055, 3094, 3290, 3451, 3770, 3995, 4277, 4930, 5278, 5593, 6110, 6409, 6815, 6902, 7735, 7990, 8554, 9541, 10387, 11186, 12818, 13195, 13630, 15470, 17255, 17719, 19082, 20774, 21385, 23171, 26390, 27965, 32045, 34510, 35438, 42770, 44863, 46342, 47705, 51935, 55930, 64090, 72709, 88595, 89726, 95410, 103870, 115855, 124033, 145418, 162197, 177190, 224315, 231710, 248066, 301223, 324394, 363545, 448630, 602446, 620165, 727090, 810985, 1240330, 1506115, 1621970, 2108561, 3012230, 4217122, 10542805, 21085610]

約数ペア:

[(1, 21085610), (2, 10542805), (5, 4217122), (7, 3012230), (10, 2108561), (13, 1621970), (14, 1506115), (17, 1240330), (26, 810985), (29, 727090), (34, 620165), (35, 602446), (47, 448630), (58, 363545), (65, 324394), (70, 301223), (85, 248066), (91, 231710), (94, 224315), (119, 177190), (130, 162197), (145, 145418), (170, 124033), (182, 115855), (203, 103870), (221, 95410), (235, 89726), (238, 88595), (290, 72709), (329, 64090), (377, 55930), (406, 51935), (442, 47705), (455, 46342), (470, 44863), (493, 42770), (595, 35438), (611, 34510), (658, 32045), (754, 27965), (799, 26390), (910, 23171), (986, 21385), (1015, 20774), (1105, 19082), (1190, 17719), (1222, 17255), (1363, 15470), (1547, 13630), (1598, 13195), (1645, 12818), (1885, 11186), (2030, 10387), (2210, 9541), (2465, 8554), (2639, 7990), (2726, 7735), (3055, 6902), (3094, 6815), (3290, 6409), (3451, 6110), (3770, 5593), (3995, 5278), (4277, 4930)]