18779649

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 11080191

約数列:

[1, 3, 7, 21, 47, 53, 141, 159, 329, 359, 371, 987, 1077, 1113, 2491, 2513, 7473, 7539, 16873, 17437, 19027, 50619, 52311, 57081, 118111, 133189, 354333, 399567, 894269, 2682807, 6259883, 18779649]

約数ペア:

[(1, 18779649), (3, 6259883), (7, 2682807), (21, 894269), (47, 399567), (53, 354333), (141, 133189), (159, 118111), (329, 57081), (359, 52311), (371, 50619), (987, 19027), (1077, 17437), (1113, 16873), (2491, 7539), (2513, 7473)]