19970241

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 28926720

約数和(自身を除く): 8956479

約数列:

[1, 3, 29, 53, 61, 71, 87, 159, 183, 213, 1537, 1769, 2059, 3233, 3763, 4331, 4611, 5307, 6177, 9699, 11289, 12993, 93757, 109127, 125599, 229543, 281271, 327381, 376797, 688629, 6656747, 19970241]

約数ペア:

[(1, 19970241), (3, 6656747), (29, 688629), (53, 376797), (61, 327381), (71, 281271), (87, 229543), (159, 125599), (183, 109127), (213, 93757), (1537, 12993), (1769, 11289), (2059, 9699), (3233, 6177), (3763, 5307), (4331, 4611)]