21931976

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 45805200

約数和(自身を除く): 23873224

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 139, 163, 242, 278, 326, 484, 556, 652, 968, 1112, 1304, 1529, 1793, 3058, 3586, 6116, 7172, 12232, 14344, 16819, 19723, 22657, 33638, 39446, 45314, 67276, 78892, 90628, 134552, 157784, 181256, 249227, 498454, 996908, 1993816, 2741497, 5482994, 10965988, 21931976]

約数ペア:

[(1, 21931976), (2, 10965988), (4, 5482994), (8, 2741497), (11, 1993816), (22, 996908), (44, 498454), (88, 249227), (121, 181256), (139, 157784), (163, 134552), (242, 90628), (278, 78892), (326, 67276), (484, 45314), (556, 39446), (652, 33638), (968, 22657), (1112, 19723), (1304, 16819), (1529, 14344), (1793, 12232), (3058, 7172), (3586, 6116)]