70721847

素因数分解:

$3^2\times 7^2\times {\mathrm{160367}}^1$

素因数の和:160387

約数の個数: 18

約数和(自身を含む): 118832688

約数和(自身を除く): 48110841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 160367, 481101, 1122569, 1443303, 3367707, 7857983, 10103121, 23573949, 70721847]

約数ペア:

[(1, 70721847), (3, 23573949), (7, 10103121), (9, 7857983), (21, 3367707), (49, 1443303), (63, 1122569), (147, 481101), (441, 160367)]