21730975

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5399}}^1$

素因数の和:5439

約数の個数: 24

約数和(自身を含む): 32140800

約数和(自身を除く): 10409825

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 5399, 26995, 37793, 124177, 134975, 188965, 620885, 869239, 944825, 3104425, 4346195, 21730975]

約数ペア:

[(1, 21730975), (5, 4346195), (7, 3104425), (23, 944825), (25, 869239), (35, 620885), (115, 188965), (161, 134975), (175, 124177), (575, 37793), (805, 26995), (4025, 5399)]