20751129

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{14321}}^1$

素因数の和:14357

約数の個数: 24

約数和(自身を含む): 35747712

約数和(自身を除く): 14996583

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 14321, 42963, 100247, 128889, 300741, 329383, 902223, 988149, 2305681, 2964447, 6917043, 20751129]

約数ペア:

[(1, 20751129), (3, 6917043), (7, 2964447), (9, 2305681), (21, 988149), (23, 902223), (63, 329383), (69, 300741), (161, 128889), (207, 100247), (483, 42963), (1449, 14321)]