18440457

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 29779968

約数和(自身を除く): 11339511

約数列:

[1, 3, 7, 21, 23, 69, 73, 161, 219, 483, 511, 523, 1533, 1569, 1679, 3661, 5037, 10983, 11753, 12029, 35259, 36087, 38179, 84203, 114537, 252609, 267253, 801759, 878117, 2634351, 6146819, 18440457]

約数ペア:

[(1, 18440457), (3, 6146819), (7, 2634351), (21, 878117), (23, 801759), (69, 267253), (73, 252609), (161, 114537), (219, 84203), (483, 38179), (511, 36087), (523, 35259), (1533, 12029), (1569, 11753), (1679, 10983), (3661, 5037)]