218381541

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{1453}}^1$

素因数の和:1901

約数の個数: 32

約数和(自身を含む): 353426688

約数和(自身を除く): 135045147

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 421, 1263, 1453, 2947, 4359, 7157, 8841, 10171, 21471, 24701, 30513, 50099, 74103, 150297, 172907, 518721, 611713, 1835139, 4281991, 10399121, 12845973, 31197363, 72793847, 218381541]

約数ペア:

[(1, 218381541), (3, 72793847), (7, 31197363), (17, 12845973), (21, 10399121), (51, 4281991), (119, 1835139), (357, 611713), (421, 518721), (1263, 172907), (1453, 150297), (2947, 74103), (4359, 50099), (7157, 30513), (8841, 24701), (10171, 21471)]