21318730

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 39833856

約数和(自身を除く): 18515126

約数列:

[1, 2, 5, 10, 47, 67, 94, 134, 235, 335, 470, 670, 677, 1354, 3149, 3385, 6298, 6770, 15745, 31490, 31819, 45359, 63638, 90718, 159095, 226795, 318190, 453590, 2131873, 4263746, 10659365, 21318730]

約数ペア:

[(1, 21318730), (2, 10659365), (5, 4263746), (10, 2131873), (47, 453590), (67, 318190), (94, 226795), (134, 159095), (235, 90718), (335, 63638), (470, 45359), (670, 31819), (677, 31490), (1354, 15745), (3149, 6770), (3385, 6298)]