20658276

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:321

約数の個数: 72

約数和(自身を含む): 54722304

約数和(自身を除く): 34064028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 107, 124, 173, 186, 214, 279, 321, 346, 372, 428, 519, 558, 642, 692, 963, 1038, 1116, 1284, 1557, 1926, 2076, 3114, 3317, 3852, 5363, 6228, 6634, 9951, 10726, 13268, 16089, 18511, 19902, 21452, 29853, 32178, 37022, 39804, 48267, 55533, 59706, 64356, 74044, 96534, 111066, 119412, 166599, 193068, 222132, 333198, 573841, 666396, 1147682, 1721523, 2295364, 3443046, 5164569, 6886092, 10329138, 20658276]

約数ペア:

[(1, 20658276), (2, 10329138), (3, 6886092), (4, 5164569), (6, 3443046), (9, 2295364), (12, 1721523), (18, 1147682), (31, 666396), (36, 573841), (62, 333198), (93, 222132), (107, 193068), (124, 166599), (173, 119412), (186, 111066), (214, 96534), (279, 74044), (321, 64356), (346, 59706), (372, 55533), (428, 48267), (519, 39804), (558, 37022), (642, 32178), (692, 29853), (963, 21452), (1038, 19902), (1116, 18511), (1284, 16089), (1557, 13268), (1926, 10726), (2076, 9951), (3114, 6634), (3317, 6228), (3852, 5363)]