21001516

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1013}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 37818144

約数和(自身を除く): 16816628

約数列:

[1, 2, 4, 71, 73, 142, 146, 284, 292, 1013, 2026, 4052, 5183, 10366, 20732, 71923, 73949, 143846, 147898, 287692, 295796, 5250379, 10500758, 21001516]

約数ペア:

[(1, 21001516), (2, 10500758), (4, 5250379), (71, 295796), (73, 287692), (142, 147898), (146, 143846), (284, 73949), (292, 71923), (1013, 20732), (2026, 10366), (4052, 5183)]