21196144

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{523}}^1$

素因数の和:697

約数の個数: 40

約数和(自身を含む): 43858800

約数和(自身を除く): 22662656

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 149, 272, 298, 523, 596, 1046, 1192, 2092, 2384, 2533, 4184, 5066, 8368, 8891, 10132, 17782, 20264, 35564, 40528, 71128, 77927, 142256, 155854, 311708, 623416, 1246832, 1324759, 2649518, 5299036, 10598072, 21196144]

約数ペア:

[(1, 21196144), (2, 10598072), (4, 5299036), (8, 2649518), (16, 1324759), (17, 1246832), (34, 623416), (68, 311708), (136, 155854), (149, 142256), (272, 77927), (298, 71128), (523, 40528), (596, 35564), (1046, 20264), (1192, 17782), (2092, 10132), (2384, 8891), (2533, 8368), (4184, 5066)]