21952525

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 33854976

約数和(自身を除く): 11902451

約数列:

[1, 5, 7, 17, 25, 35, 47, 85, 119, 157, 175, 235, 329, 425, 595, 785, 799, 1099, 1175, 1645, 2669, 2975, 3925, 3995, 5495, 5593, 7379, 8225, 13345, 18683, 19975, 27475, 27965, 36895, 51653, 66725, 93415, 125443, 139825, 184475, 258265, 467075, 627215, 878101, 1291325, 3136075, 4390505, 21952525]

約数ペア:

[(1, 21952525), (5, 4390505), (7, 3136075), (17, 1291325), (25, 878101), (35, 627215), (47, 467075), (85, 258265), (119, 184475), (157, 139825), (175, 125443), (235, 93415), (329, 66725), (425, 51653), (595, 36895), (785, 27965), (799, 27475), (1099, 19975), (1175, 18683), (1645, 13345), (2669, 8225), (2975, 7379), (3925, 5593), (3995, 5495)]