18878806

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 31600800

約数和(自身を除く): 12721994

約数列:

[1, 2, 17, 34, 37, 43, 74, 86, 349, 629, 698, 731, 1258, 1462, 1591, 3182, 5933, 11866, 12913, 15007, 25826, 27047, 30014, 54094, 219521, 255119, 439042, 510238, 555259, 1110518, 9439403, 18878806]

約数ペア:

[(1, 18878806), (2, 9439403), (17, 1110518), (34, 555259), (37, 510238), (43, 439042), (74, 255119), (86, 219521), (349, 54094), (629, 30014), (698, 27047), (731, 25826), (1258, 15007), (1462, 12913), (1591, 11866), (3182, 5933)]