18678862

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{631}}^1$

素因数の和:712

約数の個数: 24

約数和(自身を含む): 30339792

約数和(自身を除く): 11660930

約数列:

[1, 2, 19, 38, 41, 82, 361, 631, 722, 779, 1262, 1558, 11989, 14801, 23978, 25871, 29602, 51742, 227791, 455582, 491549, 983098, 9339431, 18678862]

約数ペア:

[(1, 18678862), (2, 9339431), (19, 983098), (38, 491549), (41, 455582), (82, 227791), (361, 51742), (631, 29602), (722, 25871), (779, 23978), (1262, 14801), (1558, 11989)]