20891724

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3407}}^1$

素因数の和:3494

約数の個数: 48

約数和(自身を含む): 56491008

約数和(自身を除く): 35599284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 73, 84, 146, 219, 292, 438, 511, 876, 1022, 1533, 2044, 3066, 3407, 6132, 6814, 10221, 13628, 20442, 23849, 40884, 47698, 71547, 95396, 143094, 248711, 286188, 497422, 746133, 994844, 1492266, 1740977, 2984532, 3481954, 5222931, 6963908, 10445862, 20891724]

約数ペア:

[(1, 20891724), (2, 10445862), (3, 6963908), (4, 5222931), (6, 3481954), (7, 2984532), (12, 1740977), (14, 1492266), (21, 994844), (28, 746133), (42, 497422), (73, 286188), (84, 248711), (146, 143094), (219, 95396), (292, 71547), (438, 47698), (511, 40884), (876, 23849), (1022, 20442), (1533, 13628), (2044, 10221), (3066, 6814), (3407, 6132)]