20519475

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6673}}^1$

素因数の和:6727

約数の個数: 24

約数和(自身を含む): 34758192

約数和(自身を除く): 14238717

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6673, 20019, 33365, 100095, 166825, 273593, 500475, 820779, 1367965, 4103895, 6839825, 20519475]

約数ペア:

[(1, 20519475), (3, 6839825), (5, 4103895), (15, 1367965), (25, 820779), (41, 500475), (75, 273593), (123, 166825), (205, 100095), (615, 33365), (1025, 20019), (3075, 6673)]