28607139

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2861}}^1$

素因数の和:2979

約数の個数: 24

約数和(自身を含む): 45540144

約数和(自身を除く): 16933005

約数列:

[1, 3, 9, 11, 33, 99, 101, 303, 909, 1111, 2861, 3333, 8583, 9999, 25749, 31471, 94413, 283239, 288961, 866883, 2600649, 3178571, 9535713, 28607139]

約数ペア:

[(1, 28607139), (3, 9535713), (9, 3178571), (11, 2600649), (33, 866883), (99, 288961), (101, 283239), (303, 94413), (909, 31471), (1111, 25749), (2861, 9999), (3333, 8583)]