20210853

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1$

素因数の和:349

約数の個数: 32

約数和(自身を含む): 30499840

約数和(自身を除く): 10288987

約数列:

[1, 3, 13, 31, 39, 73, 93, 219, 229, 403, 687, 949, 1209, 2263, 2847, 2977, 6789, 7099, 8931, 16717, 21297, 29419, 50151, 88257, 92287, 217321, 276861, 518227, 651963, 1554681, 6736951, 20210853]

約数ペア:

[(1, 20210853), (3, 6736951), (13, 1554681), (31, 651963), (39, 518227), (73, 276861), (93, 217321), (219, 92287), (229, 88257), (403, 50151), (687, 29419), (949, 21297), (1209, 16717), (2263, 8931), (2847, 7099), (2977, 6789)]