21622475

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{929}}^1$

素因数の和:972

約数の個数: 36

約数和(自身を含む): 32866200

約数和(自身を除く): 11243725

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 665, 929, 931, 1225, 3325, 4645, 4655, 6503, 17651, 23225, 23275, 32515, 45521, 88255, 123557, 162575, 227605, 441275, 617785, 864899, 1138025, 3088925, 4324495, 21622475]

約数ペア:

[(1, 21622475), (5, 4324495), (7, 3088925), (19, 1138025), (25, 864899), (35, 617785), (49, 441275), (95, 227605), (133, 162575), (175, 123557), (245, 88255), (475, 45521), (665, 32515), (929, 23275), (931, 23225), (1225, 17651), (3325, 6503), (4645, 4655)]