21268078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 36156960

約数和(自身を除く): 14888882

約数列:

[1, 2, 13, 26, 29, 58, 67, 134, 377, 421, 754, 842, 871, 1742, 1943, 3886, 5473, 10946, 12209, 24418, 25259, 28207, 50518, 56414, 158717, 317434, 366691, 733382, 818003, 1636006, 10634039, 21268078]

約数ペア:

[(1, 21268078), (2, 10634039), (13, 1636006), (26, 818003), (29, 733382), (58, 366691), (67, 317434), (134, 158717), (377, 56414), (421, 50518), (754, 28207), (842, 25259), (871, 24418), (1742, 12209), (1943, 10946), (3886, 5473)]