21636125

素因数分解:

$5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{313}}^1$

素因数の和:414

約数の個数: 32

約数和(自身を含む): 31349760

約数和(自身を除く): 9713635

約数列:

[1, 5, 7, 25, 35, 79, 125, 175, 313, 395, 553, 875, 1565, 1975, 2191, 2765, 7825, 9875, 10955, 13825, 24727, 39125, 54775, 69125, 123635, 173089, 273875, 618175, 865445, 3090875, 4327225, 21636125]

約数ペア:

[(1, 21636125), (5, 4327225), (7, 3090875), (25, 865445), (35, 618175), (79, 273875), (125, 173089), (175, 123635), (313, 69125), (395, 54775), (553, 39125), (875, 24727), (1565, 13825), (1975, 10955), (2191, 9875), (2765, 7825)]