21789148

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{1301}}^1$

素因数の和:1437

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17583332

約数列:

[1, 2, 4, 53, 79, 106, 158, 212, 316, 1301, 2602, 4187, 5204, 8374, 16748, 68953, 102779, 137906, 205558, 275812, 411116, 5447287, 10894574, 21789148]

約数ペア:

[(1, 21789148), (2, 10894574), (4, 5447287), (53, 411116), (79, 275812), (106, 205558), (158, 137906), (212, 102779), (316, 68953), (1301, 16748), (2602, 8374), (4187, 5204)]