18510038

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1$

素因数の和:260

約数の個数: 32

約数和(自身を含む): 30108672

約数和(自身を除く): 11598634

約数列:

[1, 2, 31, 43, 53, 62, 86, 106, 131, 262, 1333, 1643, 2279, 2666, 3286, 4061, 4558, 5633, 6943, 8122, 11266, 13886, 70649, 141298, 174623, 215233, 298549, 349246, 430466, 597098, 9255019, 18510038]

約数ペア:

[(1, 18510038), (2, 9255019), (31, 597098), (43, 430466), (53, 349246), (62, 298549), (86, 215233), (106, 174623), (131, 141298), (262, 70649), (1333, 13886), (1643, 11266), (2279, 8122), (2666, 6943), (3286, 5633), (4061, 4558)]