19685715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{3989}}^1$

素因数の和:4051

約数の個数: 32

約数和(自身を含む): 36771840

約数和(自身を除く): 17086125

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 3989, 4935, 11967, 19945, 27923, 59835, 83769, 139615, 187483, 418845, 562449, 937415, 1312381, 2812245, 3937143, 6561905, 19685715]

約数ペア:

[(1, 19685715), (3, 6561905), (5, 3937143), (7, 2812245), (15, 1312381), (21, 937415), (35, 562449), (47, 418845), (105, 187483), (141, 139615), (235, 83769), (329, 59835), (705, 27923), (987, 19945), (1645, 11967), (3989, 4935)]