20423396

素因数分解:

$2^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1319}}^1$

素因数の和:1416

約数の個数: 36

約数和(自身を含む): 42134400

約数和(自身を除く): 21711004

約数列:

[1, 2, 4, 7, 14, 28, 49, 79, 98, 158, 196, 316, 553, 1106, 1319, 2212, 2638, 3871, 5276, 7742, 9233, 15484, 18466, 36932, 64631, 104201, 129262, 208402, 258524, 416804, 729407, 1458814, 2917628, 5105849, 10211698, 20423396]

約数ペア:

[(1, 20423396), (2, 10211698), (4, 5105849), (7, 2917628), (14, 1458814), (28, 729407), (49, 416804), (79, 258524), (98, 208402), (158, 129262), (196, 104201), (316, 64631), (553, 36932), (1106, 18466), (1319, 15484), (2212, 9233), (2638, 7742), (3871, 5276)]