21381270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37511}}^1$

素因数の和:37540

約数の個数: 32

約数和(自身を含む): 54017280

約数和(自身を除く): 32636010

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570, 37511, 75022, 112533, 187555, 225066, 375110, 562665, 712709, 1125330, 1425418, 2138127, 3563545, 4276254, 7127090, 10690635, 21381270]

約数ペア:

[(1, 21381270), (2, 10690635), (3, 7127090), (5, 4276254), (6, 3563545), (10, 2138127), (15, 1425418), (19, 1125330), (30, 712709), (38, 562665), (57, 375110), (95, 225066), (114, 187555), (190, 112533), (285, 75022), (570, 37511)]