21124496

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15907}}^1$

素因数の和:15998

約数の個数: 20

約数和(自身を含む): 41424432

約数和(自身を除く): 20299936

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15907, 31814, 63628, 127256, 254512, 1320281, 2640562, 5281124, 10562248, 21124496]

約数ペア:

[(1, 21124496), (2, 10562248), (4, 5281124), (8, 2640562), (16, 1320281), (83, 254512), (166, 127256), (332, 63628), (664, 31814), (1328, 15907)]