21248910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{1031}}^1$

素因数の和:1273

約数の個数: 48

約数和(自身を含む): 55542240

約数和(自身を除く): 34293330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 229, 458, 687, 1031, 1145, 1374, 2061, 2062, 2290, 3093, 3435, 4122, 5155, 6186, 6870, 9279, 10305, 10310, 15465, 18558, 20610, 30930, 46395, 92790, 236099, 472198, 708297, 1180495, 1416594, 2124891, 2360990, 3541485, 4249782, 7082970, 10624455, 21248910]

約数ペア:

[(1, 21248910), (2, 10624455), (3, 7082970), (5, 4249782), (6, 3541485), (9, 2360990), (10, 2124891), (15, 1416594), (18, 1180495), (30, 708297), (45, 472198), (90, 236099), (229, 92790), (458, 46395), (687, 30930), (1031, 20610), (1145, 18558), (1374, 15465), (2061, 10310), (2062, 10305), (2290, 9279), (3093, 6870), (3435, 6186), (4122, 5155)]