20509115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{6113}}^1$

素因数の和:6190

約数の個数: 16

約数和(自身を含む): 27292896

約数和(自身を除く): 6783781

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 6113, 30565, 67243, 336215, 372893, 1864465, 4101823, 20509115]

約数ペア:

[(1, 20509115), (5, 4101823), (11, 1864465), (55, 372893), (61, 336215), (305, 67243), (671, 30565), (3355, 6113)]