79878771

素因数分解:

$3^3\times 7^2\times {\mathrm{173}}^1\times {\mathrm{349}}^1$

素因数の和:545

約数の個数: 48

約数和(自身を含む): 138852000

約数和(自身を除く): 58973229

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 173, 189, 349, 441, 519, 1047, 1211, 1323, 1557, 2443, 3141, 3633, 4671, 7329, 8477, 9423, 10899, 17101, 21987, 25431, 32697, 51303, 60377, 65961, 76293, 153909, 181131, 228879, 422639, 461727, 543393, 1267917, 1630179, 2958473, 3803751, 8875419, 11411253, 26626257, 79878771]

約数ペア:

[(1, 79878771), (3, 26626257), (7, 11411253), (9, 8875419), (21, 3803751), (27, 2958473), (49, 1630179), (63, 1267917), (147, 543393), (173, 461727), (189, 422639), (349, 228879), (441, 181131), (519, 153909), (1047, 76293), (1211, 65961), (1323, 60377), (1557, 51303), (2443, 32697), (3141, 25431), (3633, 21987), (4671, 17101), (7329, 10899), (8477, 9423)]