21973430

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{373}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 40876704

約数和(自身を除く): 18903274

約数列:

[1, 2, 5, 10, 43, 86, 137, 215, 274, 373, 430, 685, 746, 1370, 1865, 3730, 5891, 11782, 16039, 29455, 32078, 51101, 58910, 80195, 102202, 160390, 255505, 511010, 2197343, 4394686, 10986715, 21973430]

約数ペア:

[(1, 21973430), (2, 10986715), (5, 4394686), (10, 2197343), (43, 511010), (86, 255505), (137, 160390), (215, 102202), (274, 80195), (373, 58910), (430, 51101), (685, 32078), (746, 29455), (1370, 16039), (1865, 11782), (3730, 5891)]