681618609

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1\times {\mathrm{281}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 1141445760

約数和(自身を除く): 459827151

約数列:

[1, 3, 7, 9, 21, 63, 139, 277, 281, 417, 831, 843, 973, 1251, 1939, 1967, 2493, 2529, 2919, 5817, 5901, 8757, 17451, 17703, 38503, 39059, 77837, 115509, 117177, 233511, 269521, 273413, 346527, 351531, 544859, 700533, 808563, 820239, 1634577, 2425689, 2460717, 4903731, 10819343, 32458029, 75735401, 97374087, 227206203, 681618609]

約数ペア:

[(1, 681618609), (3, 227206203), (7, 97374087), (9, 75735401), (21, 32458029), (63, 10819343), (139, 4903731), (277, 2460717), (281, 2425689), (417, 1634577), (831, 820239), (843, 808563), (973, 700533), (1251, 544859), (1939, 351531), (1967, 346527), (2493, 273413), (2529, 269521), (2919, 233511), (5817, 117177), (5901, 115509), (8757, 77837), (17451, 39059), (17703, 38503)]