20486123

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 26557440

約数和(自身を除く): 6071317

約数列:

[1, 7, 19, 23, 37, 133, 161, 181, 259, 437, 703, 851, 1267, 3059, 3439, 4163, 4921, 5957, 6697, 16169, 24073, 29141, 46879, 79097, 113183, 127243, 154031, 553679, 890701, 1078217, 2926589, 20486123]

約数ペア:

[(1, 20486123), (7, 2926589), (19, 1078217), (23, 890701), (37, 553679), (133, 154031), (161, 127243), (181, 113183), (259, 79097), (437, 46879), (703, 29141), (851, 24073), (1267, 16169), (3059, 6697), (3439, 5957), (4163, 4921)]