18816764

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:282

約数の個数: 36

約数和(自身を含む): 35396424

約数和(自身を除く): 16579660

約数列:

[1, 2, 4, 19, 38, 76, 83, 157, 166, 314, 332, 361, 628, 722, 1444, 1577, 2983, 3154, 5966, 6308, 11932, 13031, 26062, 29963, 52124, 56677, 59926, 113354, 119852, 226708, 247589, 495178, 990356, 4704191, 9408382, 18816764]

約数ペア:

[(1, 18816764), (2, 9408382), (4, 4704191), (19, 990356), (38, 495178), (76, 247589), (83, 226708), (157, 119852), (166, 113354), (314, 59926), (332, 56677), (361, 52124), (628, 29963), (722, 26062), (1444, 13031), (1577, 11932), (2983, 6308), (3154, 5966)]