20977615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{503}}^1$

素因数の和:966

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 5633585

約数列:

[1, 5, 19, 95, 439, 503, 2195, 2515, 8341, 9557, 41705, 47785, 220817, 1104085, 4195523, 20977615]

約数ペア:

[(1, 20977615), (5, 4195523), (19, 1104085), (95, 220817), (439, 47785), (503, 41705), (2195, 9557), (2515, 8341)]