21419980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36931}}^1$

素因数の和:36969

約数の個数: 24

約数和(自身を含む): 46534320

約数和(自身を除く): 25114340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36931, 73862, 147724, 184655, 369310, 738620, 1070999, 2141998, 4283996, 5354995, 10709990, 21419980]

約数ペア:

[(1, 21419980), (2, 10709990), (4, 5354995), (5, 4283996), (10, 2141998), (20, 1070999), (29, 738620), (58, 369310), (116, 184655), (145, 147724), (290, 73862), (580, 36931)]