18704774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{233}}^1$

素因数の和:376

約数の個数: 32

約数和(自身を含む): 31842720

約数和(自身を除く): 13137946

約数列:

[1, 2, 11, 22, 41, 82, 89, 178, 233, 451, 466, 902, 979, 1958, 2563, 3649, 5126, 7298, 9553, 19106, 20737, 40139, 41474, 80278, 105083, 210166, 228107, 456214, 850217, 1700434, 9352387, 18704774]

約数ペア:

[(1, 18704774), (2, 9352387), (11, 1700434), (22, 850217), (41, 456214), (82, 228107), (89, 210166), (178, 105083), (233, 80278), (451, 41474), (466, 40139), (902, 20737), (979, 19106), (1958, 9553), (2563, 7298), (3649, 5126)]