21612605

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 30855168

約数和(自身を除く): 9242563

約数列:

[1, 5, 7, 35, 53, 61, 191, 265, 305, 371, 427, 955, 1337, 1855, 2135, 3233, 6685, 10123, 11651, 16165, 22631, 50615, 58255, 70861, 81557, 113155, 354305, 407785, 617503, 3087515, 4322521, 21612605]

約数ペア:

[(1, 21612605), (5, 4322521), (7, 3087515), (35, 617503), (53, 407785), (61, 354305), (191, 113155), (265, 81557), (305, 70861), (371, 58255), (427, 50615), (955, 22631), (1337, 16165), (1855, 11651), (2135, 10123), (3233, 6685)]