21440230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 26459930

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 43, 70, 85, 86, 119, 170, 215, 238, 301, 419, 430, 595, 602, 731, 838, 1190, 1462, 1505, 2095, 2933, 3010, 3655, 4190, 5117, 5866, 7123, 7310, 10234, 14246, 14665, 18017, 25585, 29330, 35615, 36034, 49861, 51170, 71230, 90085, 99722, 126119, 180170, 249305, 252238, 306289, 498610, 612578, 630595, 1261190, 1531445, 2144023, 3062890, 4288046, 10720115, 21440230]

約数ペア:

[(1, 21440230), (2, 10720115), (5, 4288046), (7, 3062890), (10, 2144023), (14, 1531445), (17, 1261190), (34, 630595), (35, 612578), (43, 498610), (70, 306289), (85, 252238), (86, 249305), (119, 180170), (170, 126119), (215, 99722), (238, 90085), (301, 71230), (419, 51170), (430, 49861), (595, 36034), (602, 35615), (731, 29330), (838, 25585), (1190, 18017), (1462, 14665), (1505, 14246), (2095, 10234), (2933, 7310), (3010, 7123), (3655, 5866), (4190, 5117)]