19910271745

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{653117}}^1$

素因数の和:653209

約数の個数: 32

約数和(自身を含む): 29844880128

約数和(自身を除く): 9934608383

約数列:

[1, 5, 7, 13, 35, 65, 67, 91, 335, 455, 469, 871, 2345, 4355, 6097, 30485, 653117, 3265585, 4571819, 8490521, 22859095, 42452605, 43758839, 59433647, 218794195, 297168235, 306311873, 568864907, 1531559365, 2844324535, 3982054349, 19910271745]

約数ペア:

[(1, 19910271745), (5, 3982054349), (7, 2844324535), (13, 1531559365), (35, 568864907), (65, 306311873), (67, 297168235), (91, 218794195), (335, 59433647), (455, 43758839), (469, 42452605), (871, 22859095), (2345, 8490521), (4355, 4571819), (6097, 3265585), (30485, 653117)]