21332156945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{90011}}^1$

素因数の和:90197

約数の個数: 32

約数和(自身を含む): 29034270720

約数和(自身を除く): 7702113775

約数列:

[1, 5, 11, 31, 55, 139, 155, 341, 695, 1529, 1705, 4309, 7645, 21545, 47399, 90011, 236995, 450055, 990121, 2790341, 4950605, 12511529, 13951705, 30693751, 62557645, 137626819, 153468755, 387857399, 688134095, 1939286995, 4266431389, 21332156945]

約数ペア:

[(1, 21332156945), (5, 4266431389), (11, 1939286995), (31, 688134095), (55, 387857399), (139, 153468755), (155, 137626819), (341, 62557645), (695, 30693751), (1529, 13951705), (1705, 12511529), (4309, 4950605), (7645, 2790341), (21545, 990121), (47399, 450055), (90011, 236995)]