21538893

素因数分解:

$3^1\times {\mathrm{31}}^3\times {\mathrm{241}}^1$

素因数の和:337

約数の個数: 16

約数和(自身を含む): 29798912

約数和(自身を除く): 8260019

約数列:

[1, 3, 31, 93, 241, 723, 961, 2883, 7471, 22413, 29791, 89373, 231601, 694803, 7179631, 21538893]

約数ペア:

[(1, 21538893), (3, 7179631), (31, 694803), (93, 231601), (241, 89373), (723, 29791), (961, 22413), (2883, 7471)]