18839529

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 27934400

約数和(自身を除く): 9094871

約数列:

[1, 3, 9, 67, 157, 199, 201, 471, 597, 603, 1413, 1791, 10519, 13333, 31243, 31557, 39999, 93729, 94671, 119997, 281187, 2093281, 6279843, 18839529]

約数ペア:

[(1, 18839529), (3, 6279843), (9, 2093281), (67, 281187), (157, 119997), (199, 94671), (201, 93729), (471, 39999), (597, 31557), (603, 31243), (1413, 13333), (1791, 10519)]