21910525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9631}}^1$

素因数の和:9661

約数の個数: 24

約数和(自身を含む): 33442304

約数和(自身を除く): 11531779

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 9631, 48155, 67417, 125203, 240775, 337085, 626015, 876421, 1685425, 3130075, 4382105, 21910525]

約数ペア:

[(1, 21910525), (5, 4382105), (7, 3130075), (13, 1685425), (25, 876421), (35, 626015), (65, 337085), (91, 240775), (175, 125203), (325, 67417), (455, 48155), (2275, 9631)]