18907288

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{487}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 37244160

約数和(自身を除く): 18336872

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 211, 422, 487, 844, 974, 1688, 1948, 3896, 4853, 9706, 11201, 19412, 22402, 38824, 44804, 89608, 102757, 205514, 411028, 822056, 2363411, 4726822, 9453644, 18907288]

約数ペア:

[(1, 18907288), (2, 9453644), (4, 4726822), (8, 2363411), (23, 822056), (46, 411028), (92, 205514), (184, 102757), (211, 89608), (422, 44804), (487, 38824), (844, 22402), (974, 19412), (1688, 11201), (1948, 9706), (3896, 4853)]