20557570943

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{168211}}^1$

素因数の和:168327

約数の個数: 32

約数和(自身を含む): 27129231360

約数和(自身を除く): 6571660417

約数列:

[1, 7, 13, 17, 79, 91, 119, 221, 553, 1027, 1343, 1547, 7189, 9401, 17459, 122213, 168211, 1177477, 2186743, 2859587, 13288669, 15307201, 20017109, 37174631, 93020683, 172752697, 225907373, 260222417, 1209268879, 1581351611, 2936795849, 20557570943]

約数ペア:

[(1, 20557570943), (7, 2936795849), (13, 1581351611), (17, 1209268879), (79, 260222417), (91, 225907373), (119, 172752697), (221, 93020683), (553, 37174631), (1027, 20017109), (1343, 15307201), (1547, 13288669), (7189, 2859587), (9401, 2186743), (17459, 1177477), (122213, 168211)]