20539874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:446

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 13881886

約数列:

[1, 2, 19, 23, 38, 46, 71, 142, 331, 437, 662, 874, 1349, 1633, 2698, 3266, 6289, 7613, 12578, 15226, 23501, 31027, 47002, 62054, 144647, 289294, 446519, 540523, 893038, 1081046, 10269937, 20539874]

約数ペア:

[(1, 20539874), (2, 10269937), (19, 1081046), (23, 893038), (38, 540523), (46, 446519), (71, 289294), (142, 144647), (331, 62054), (437, 47002), (662, 31027), (874, 23501), (1349, 15226), (1633, 12578), (2698, 7613), (3266, 6289)]