18916138

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:318

約数の個数: 32

約数和(自身を含む): 31477248

約数和(自身を除く): 12561110

約数列:

[1, 2, 17, 31, 34, 62, 131, 137, 262, 274, 527, 1054, 2227, 2329, 4061, 4247, 4454, 4658, 8122, 8494, 17947, 35894, 69037, 72199, 138074, 144398, 305099, 556357, 610198, 1112714, 9458069, 18916138]

約数ペア:

[(1, 18916138), (2, 9458069), (17, 1112714), (31, 610198), (34, 556357), (62, 305099), (131, 144398), (137, 138074), (262, 72199), (274, 69037), (527, 35894), (1054, 17947), (2227, 8494), (2329, 8122), (4061, 4658), (4247, 4454)]