21845170

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 44914176

約数和(自身を除く): 23069006

約数列:

[1, 2, 5, 10, 17, 23, 34, 37, 46, 74, 85, 115, 151, 170, 185, 230, 302, 370, 391, 629, 755, 782, 851, 1258, 1510, 1702, 1955, 2567, 3145, 3473, 3910, 4255, 5134, 5587, 6290, 6946, 8510, 11174, 12835, 14467, 17365, 25670, 27935, 28934, 34730, 55870, 59041, 72335, 94979, 118082, 128501, 144670, 189958, 257002, 295205, 474895, 590410, 642505, 949790, 1285010, 2184517, 4369034, 10922585, 21845170]

約数ペア:

[(1, 21845170), (2, 10922585), (5, 4369034), (10, 2184517), (17, 1285010), (23, 949790), (34, 642505), (37, 590410), (46, 474895), (74, 295205), (85, 257002), (115, 189958), (151, 144670), (170, 128501), (185, 118082), (230, 94979), (302, 72335), (370, 59041), (391, 55870), (629, 34730), (755, 28934), (782, 27935), (851, 25670), (1258, 17365), (1510, 14467), (1702, 12835), (1955, 11174), (2567, 8510), (3145, 6946), (3473, 6290), (3910, 5587), (4255, 5134)]