18421712

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 37658304

約数和(自身を除く): 19236592

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 113, 184, 226, 368, 443, 452, 886, 904, 1772, 1808, 2599, 3544, 5198, 7088, 10189, 10396, 20378, 20792, 40756, 41584, 50059, 81512, 100118, 163024, 200236, 400472, 800944, 1151357, 2302714, 4605428, 9210856, 18421712]

約数ペア:

[(1, 18421712), (2, 9210856), (4, 4605428), (8, 2302714), (16, 1151357), (23, 800944), (46, 400472), (92, 200236), (113, 163024), (184, 100118), (226, 81512), (368, 50059), (443, 41584), (452, 40756), (886, 20792), (904, 20378), (1772, 10396), (1808, 10189), (2599, 7088), (3544, 5198)]