81138897

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 140400000

約数和(自身を除く): 59261103

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 89, 203, 261, 267, 499, 609, 623, 801, 1497, 1827, 1869, 2581, 3493, 4491, 5607, 7743, 10479, 14471, 18067, 23229, 31437, 43413, 44411, 54201, 101297, 130239, 133233, 162603, 303891, 310877, 399699, 911673, 932631, 1287919, 2797893, 3863757, 9015433, 11591271, 27046299, 81138897]

約数ペア:

[(1, 81138897), (3, 27046299), (7, 11591271), (9, 9015433), (21, 3863757), (29, 2797893), (63, 1287919), (87, 932631), (89, 911673), (203, 399699), (261, 310877), (267, 303891), (499, 162603), (609, 133233), (623, 130239), (801, 101297), (1497, 54201), (1827, 44411), (1869, 43413), (2581, 31437), (3493, 23229), (4491, 18067), (5607, 14471), (7743, 10479)]