222742191

素因数分解:

$3^1\times 7^2\times {\mathrm{1019}}^1\times {\mathrm{1487}}^1$

素因数の和:2523

約数の個数: 24

約数和(自身を含む): 346049280

約数和(自身を除く): 123307089

約数列:

[1, 3, 7, 21, 49, 147, 1019, 1487, 3057, 4461, 7133, 10409, 21399, 31227, 49931, 72863, 149793, 218589, 1515253, 4545759, 10606771, 31820313, 74247397, 222742191]

約数ペア:

[(1, 222742191), (3, 74247397), (7, 31820313), (21, 10606771), (49, 4545759), (147, 1515253), (1019, 218589), (1487, 149793), (3057, 72863), (4461, 49931), (7133, 31227), (10409, 21399)]