20784115

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22229}}^1$

素因数の和:22262

約数の個数: 16

約数和(自身を含む): 28810080

約数和(自身を除く): 8025965

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22229, 111145, 244519, 377893, 1222595, 1889465, 4156823, 20784115]

約数ペア:

[(1, 20784115), (5, 4156823), (11, 1889465), (17, 1222595), (55, 377893), (85, 244519), (187, 111145), (935, 22229)]