21043947

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5519}}^1$

素因数の和:5594

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 8631573

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5519, 16557, 171089, 226279, 513267, 678837, 7014649, 21043947]

約数ペア:

[(1, 21043947), (3, 7014649), (31, 678837), (41, 513267), (93, 226279), (123, 171089), (1271, 16557), (3813, 5519)]