18691953

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{593}}^1$

素因数の和:701

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 11720847

約数列:

[1, 3, 7, 19, 21, 57, 79, 133, 237, 399, 553, 593, 1501, 1659, 1779, 4151, 4503, 10507, 11267, 12453, 31521, 33801, 46847, 78869, 140541, 236607, 327929, 890093, 983787, 2670279, 6230651, 18691953]

約数ペア:

[(1, 18691953), (3, 6230651), (7, 2670279), (19, 983787), (21, 890093), (57, 327929), (79, 236607), (133, 140541), (237, 78869), (399, 46847), (553, 33801), (593, 31521), (1501, 12453), (1659, 11267), (1779, 10507), (4151, 4503)]