213131018

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{243857}}^1$

素因数の和:243901

約数の個数: 16

約数和(自身を含む): 351155520

約数和(自身を除く): 138024502

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 243857, 487714, 4633283, 5608711, 9266566, 11217422, 106565509, 213131018]

約数ペア:

[(1, 213131018), (2, 106565509), (19, 11217422), (23, 9266566), (38, 5608711), (46, 4633283), (437, 487714), (874, 243857)]