19922679

素因数分解:

$3^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1$

素因数の和:917

約数の個数: 40

約数和(自身を含む): 34882848

約数和(自身を除く): 14960169

約数列:

[1, 3, 7, 9, 21, 27, 41, 63, 81, 123, 189, 287, 369, 567, 857, 861, 1107, 2571, 2583, 3321, 5999, 7713, 7749, 17997, 23139, 23247, 35137, 53991, 69417, 105411, 161973, 245959, 316233, 485919, 737877, 948699, 2213631, 2846097, 6640893, 19922679]

約数ペア:

[(1, 19922679), (3, 6640893), (7, 2846097), (9, 2213631), (21, 948699), (27, 737877), (41, 485919), (63, 316233), (81, 245959), (123, 161973), (189, 105411), (287, 69417), (369, 53991), (567, 35137), (857, 23247), (861, 23139), (1107, 17997), (2571, 7749), (2583, 7713), (3321, 5999)]