21954130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199583}}^1$

素因数の和:199601

約数の個数: 16

約数和(自身を含む): 43110144

約数和(自身を除く): 21156014

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199583, 399166, 997915, 1995830, 2195413, 4390826, 10977065, 21954130]

約数ペア:

[(1, 21954130), (2, 10977065), (5, 4390826), (10, 2195413), (11, 1995830), (22, 997915), (55, 399166), (110, 199583)]