54720309

素因数分解:

$3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{2371}}^1$

素因数の和:2545

約数の個数: 24

約数和(自身を含む): 85448928

約数和(自身を除く): 30728619

約数列:

[1, 3, 7, 21, 49, 147, 157, 471, 1099, 2371, 3297, 7113, 7693, 16597, 23079, 49791, 116179, 348537, 372247, 1116741, 2605729, 7817187, 18240103, 54720309]

約数ペア:

[(1, 54720309), (3, 18240103), (7, 7817187), (21, 2605729), (49, 1116741), (147, 372247), (157, 348537), (471, 116179), (1099, 49791), (2371, 23079), (3297, 16597), (7113, 7693)]