21401372

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{379}}^1\times {\mathrm{743}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 39580800

約数和(自身を除く): 18179428

約数列:

[1, 2, 4, 19, 38, 76, 379, 743, 758, 1486, 1516, 2972, 7201, 14117, 14402, 28234, 28804, 56468, 281597, 563194, 1126388, 5350343, 10700686, 21401372]

約数ペア:

[(1, 21401372), (2, 10700686), (4, 5350343), (19, 1126388), (38, 563194), (76, 281597), (379, 56468), (743, 28804), (758, 28234), (1486, 14402), (1516, 14117), (2972, 7201)]