20104371399

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1\times {\mathrm{647}}^1$

素因数の和:1036

約数の個数: 64

約数和(自身を含む): 31595692032

約数和(自身を除く): 11491320633

約数列:

[1, 3, 7, 21, 61, 127, 183, 191, 381, 427, 573, 647, 889, 1281, 1337, 1941, 2667, 4011, 4529, 7747, 11651, 13587, 23241, 24257, 34953, 39467, 54229, 72771, 81557, 82169, 118401, 123577, 162687, 169799, 244671, 246507, 276269, 370731, 509397, 575183, 828807, 865039, 1479677, 1725549, 2595117, 4439031, 5012309, 7538197, 10357739, 15036927, 15694279, 22614591, 31073217, 35086163, 47082837, 52767379, 105258489, 109859953, 158302137, 329579859, 957351019, 2872053057, 6701457133, 20104371399]

約数ペア:

[(1, 20104371399), (3, 6701457133), (7, 2872053057), (21, 957351019), (61, 329579859), (127, 158302137), (183, 109859953), (191, 105258489), (381, 52767379), (427, 47082837), (573, 35086163), (647, 31073217), (889, 22614591), (1281, 15694279), (1337, 15036927), (1941, 10357739), (2667, 7538197), (4011, 5012309), (4529, 4439031), (7747, 2595117), (11651, 1725549), (13587, 1479677), (23241, 865039), (24257, 828807), (34953, 575183), (39467, 509397), (54229, 370731), (72771, 276269), (81557, 246507), (82169, 244671), (118401, 169799), (123577, 162687)]