21983654

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20393}}^1$

素因数の和:20420

約数の個数: 24

約数和(自身を含む): 41848488

約数和(自身を除く): 19864834

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 20393, 40786, 142751, 224323, 285502, 448646, 999257, 1570261, 1998514, 3140522, 10991827, 21983654]

約数ペア:

[(1, 21983654), (2, 10991827), (7, 3140522), (11, 1998514), (14, 1570261), (22, 999257), (49, 448646), (77, 285502), (98, 224323), (154, 142751), (539, 40786), (1078, 20393)]