641990013

素因数分解:

$3^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{15217}}^1$

素因数の和:15282

約数の個数: 32

約数和(自身を含む): 1022649600

約数和(自身を除く): 380659587

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 343, 861, 1029, 2009, 6027, 14063, 15217, 42189, 45651, 106519, 319557, 623897, 745633, 1871691, 2236899, 4367279, 5219431, 13101837, 15658293, 30570953, 91712859, 213996671, 641990013]

約数ペア:

[(1, 641990013), (3, 213996671), (7, 91712859), (21, 30570953), (41, 15658293), (49, 13101837), (123, 5219431), (147, 4367279), (287, 2236899), (343, 1871691), (861, 745633), (1029, 623897), (2009, 319557), (6027, 106519), (14063, 45651), (15217, 42189)]