18217963553

素因数分解:

${\mathrm{19}}^4\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3370

約数の個数: 20

約数和(自身を含む): 19683328368

約数和(自身を除く): 1465364815

約数列:

[1, 19, 43, 361, 817, 3251, 6859, 15523, 61769, 130321, 139793, 294937, 1173611, 2656067, 5603803, 22298609, 50465273, 423673571, 958840187, 18217963553]

約数ペア:

[(1, 18217963553), (19, 958840187), (43, 423673571), (361, 50465273), (817, 22298609), (3251, 5603803), (6859, 2656067), (15523, 1173611), (61769, 294937), (130321, 139793)]