21864554

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{13381}}^1$

素因数の和:13445

約数の個数: 16

約数和(自身を含む): 35328480

約数和(自身を除く): 13463926

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 13381, 26762, 254239, 508478, 575383, 1150766, 10932277, 21864554]

約数ペア:

[(1, 21864554), (2, 10932277), (19, 1150766), (38, 575383), (43, 508478), (86, 254239), (817, 26762), (1634, 13381)]