18958225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5303}}^1$

素因数の和:5337

約数の個数: 24

約数和(自身を含む): 27623232

約数和(自身を除く): 8665007

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 5303, 26515, 58333, 68939, 132575, 291665, 344695, 758329, 1458325, 1723475, 3791645, 18958225]

約数ペア:

[(1, 18958225), (5, 3791645), (11, 1723475), (13, 1458325), (25, 758329), (55, 344695), (65, 291665), (143, 132575), (275, 68939), (325, 58333), (715, 26515), (3575, 5303)]