20801139086

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{21407}}^1$

素因数の和:21729

約数の個数: 64

約数和(自身を含む): 40569016320

約数和(自身を除く): 19767877234

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 247, 266, 281, 494, 562, 1729, 1967, 3458, 3653, 3934, 5339, 7306, 10678, 21407, 25571, 37373, 42814, 51142, 69407, 74746, 138814, 149849, 278291, 299698, 406733, 485849, 556582, 813466, 971698, 1948037, 2847131, 3896074, 5287529, 5694262, 6015367, 10575058, 12030734, 37012703, 42107569, 74025406, 78199771, 84215138, 114291973, 156399542, 228583946, 547398397, 800043811, 1094796794, 1485795649, 1600087622, 2971591298, 10400569543, 20801139086]

約数ペア:

[(1, 20801139086), (2, 10400569543), (7, 2971591298), (13, 1600087622), (14, 1485795649), (19, 1094796794), (26, 800043811), (38, 547398397), (91, 228583946), (133, 156399542), (182, 114291973), (247, 84215138), (266, 78199771), (281, 74025406), (494, 42107569), (562, 37012703), (1729, 12030734), (1967, 10575058), (3458, 6015367), (3653, 5694262), (3934, 5287529), (5339, 3896074), (7306, 2847131), (10678, 1948037), (21407, 971698), (25571, 813466), (37373, 556582), (42814, 485849), (51142, 406733), (69407, 299698), (74746, 278291), (138814, 149849)]