21149870

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2539}}^1$

素因数の和:2577

約数の個数: 48

約数和(自身を含む): 46908720

約数和(自身を除く): 25758850

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 49, 70, 85, 98, 119, 170, 238, 245, 490, 595, 833, 1190, 1666, 2539, 4165, 5078, 8330, 12695, 17773, 25390, 35546, 43163, 86326, 88865, 124411, 177730, 215815, 248822, 302141, 431630, 604282, 622055, 1244110, 1510705, 2114987, 3021410, 4229974, 10574935, 21149870]

約数ペア:

[(1, 21149870), (2, 10574935), (5, 4229974), (7, 3021410), (10, 2114987), (14, 1510705), (17, 1244110), (34, 622055), (35, 604282), (49, 431630), (70, 302141), (85, 248822), (98, 215815), (119, 177730), (170, 124411), (238, 88865), (245, 86326), (490, 43163), (595, 35546), (833, 25390), (1190, 17773), (1666, 12695), (2539, 8330), (4165, 5078)]