17906889

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 64

約数和(自身を含む): 32901120

約数和(自身を除く): 14994231

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 67, 77, 89, 91, 143, 201, 231, 267, 273, 429, 469, 623, 737, 871, 979, 1001, 1157, 1407, 1869, 2211, 2613, 2937, 3003, 3471, 5159, 5963, 6097, 6853, 8099, 9581, 12727, 15477, 17889, 18291, 20559, 24297, 28743, 38181, 41741, 65593, 67067, 77519, 89089, 125223, 196779, 201201, 232557, 267267, 459151, 542633, 852709, 1377453, 1627899, 2558127, 5968963, 17906889]

約数ペア:

[(1, 17906889), (3, 5968963), (7, 2558127), (11, 1627899), (13, 1377453), (21, 852709), (33, 542633), (39, 459151), (67, 267267), (77, 232557), (89, 201201), (91, 196779), (143, 125223), (201, 89089), (231, 77519), (267, 67067), (273, 65593), (429, 41741), (469, 38181), (623, 28743), (737, 24297), (871, 20559), (979, 18291), (1001, 17889), (1157, 15477), (1407, 12727), (1869, 9581), (2211, 8099), (2613, 6853), (2937, 6097), (3003, 5963), (3471, 5159)]