21171460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{853}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 47776176

約数和(自身を除く): 26604716

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 146, 170, 292, 340, 365, 730, 853, 1241, 1460, 1706, 2482, 3412, 4265, 4964, 6205, 8530, 12410, 14501, 17060, 24820, 29002, 58004, 62269, 72505, 124538, 145010, 249076, 290020, 311345, 622690, 1058573, 1245380, 2117146, 4234292, 5292865, 10585730, 21171460]

約数ペア:

[(1, 21171460), (2, 10585730), (4, 5292865), (5, 4234292), (10, 2117146), (17, 1245380), (20, 1058573), (34, 622690), (68, 311345), (73, 290020), (85, 249076), (146, 145010), (170, 124538), (292, 72505), (340, 62269), (365, 58004), (730, 29002), (853, 24820), (1241, 17060), (1460, 14501), (1706, 12410), (2482, 8530), (3412, 6205), (4265, 4964)]