20723031

素因数分解:

$3^2\times 7^5\times {\mathrm{137}}^1$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 35176752

約数和(自身を除く): 14453721

約数列:

[1, 3, 7, 9, 21, 49, 63, 137, 147, 343, 411, 441, 959, 1029, 1233, 2401, 2877, 3087, 6713, 7203, 8631, 16807, 20139, 21609, 46991, 50421, 60417, 140973, 151263, 328937, 422919, 986811, 2302559, 2960433, 6907677, 20723031]

約数ペア:

[(1, 20723031), (3, 6907677), (7, 2960433), (9, 2302559), (21, 986811), (49, 422919), (63, 328937), (137, 151263), (147, 140973), (343, 60417), (411, 50421), (441, 46991), (959, 21609), (1029, 20139), (1233, 16807), (2401, 8631), (2877, 7203), (3087, 6713)]