28501893

素因数分解:

$3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1993}}^1$

素因数の和:2233

約数の個数: 24

約数和(自身を含む): 47281728

約数和(自身を除く): 18779835

約数列:

[1, 3, 7, 9, 21, 63, 227, 681, 1589, 1993, 2043, 4767, 5979, 13951, 14301, 17937, 41853, 125559, 452411, 1357233, 3166877, 4071699, 9500631, 28501893]

約数ペア:

[(1, 28501893), (3, 9500631), (7, 4071699), (9, 3166877), (21, 1357233), (63, 452411), (227, 125559), (681, 41853), (1589, 17937), (1993, 14301), (2043, 13951), (4767, 5979)]