20358506

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{769}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 36664320

約数和(自身を除く): 16305814

約数列:

[1, 2, 7, 14, 31, 61, 62, 122, 217, 427, 434, 769, 854, 1538, 1891, 3782, 5383, 10766, 13237, 23839, 26474, 46909, 47678, 93818, 166873, 328363, 333746, 656726, 1454179, 2908358, 10179253, 20358506]

約数ペア:

[(1, 20358506), (2, 10179253), (7, 2908358), (14, 1454179), (31, 656726), (61, 333746), (62, 328363), (122, 166873), (217, 93818), (427, 47678), (434, 46909), (769, 26474), (854, 23839), (1538, 13237), (1891, 10766), (3782, 5383)]