21997744

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{269}}^2$

素因数の和:565

約数の個数: 30

約数和(自身を含む): 45031220

約数和(自身を除く): 23033476

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 269, 304, 538, 1076, 2152, 4304, 5111, 10222, 20444, 40888, 72361, 81776, 144722, 289444, 578888, 1157776, 1374859, 2749718, 5499436, 10998872, 21997744]

約数ペア:

[(1, 21997744), (2, 10998872), (4, 5499436), (8, 2749718), (16, 1374859), (19, 1157776), (38, 578888), (76, 289444), (152, 144722), (269, 81776), (304, 72361), (538, 40888), (1076, 20444), (2152, 10222), (4304, 5111)]