21936515

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1013}}^1$

素因数の和:1150

約数の個数: 16

約数和(自身を含む): 27158976

約数和(自身を除く): 5222461

約数列:

[1, 5, 61, 71, 305, 355, 1013, 4331, 5065, 21655, 61793, 71923, 308965, 359615, 4387303, 21936515]

約数ペア:

[(1, 21936515), (5, 4387303), (61, 359615), (71, 308965), (305, 71923), (355, 61793), (1013, 21655), (4331, 5065)]