21907844

素因数分解:

$2^2\times 7^1\times {\mathrm{607}}^1\times {\mathrm{1289}}^1$

素因数の和:1907

約数の個数: 24

約数和(自身を含む): 43921920

約数和(自身を除く): 22014076

約数列:

[1, 2, 4, 7, 14, 28, 607, 1214, 1289, 2428, 2578, 4249, 5156, 8498, 9023, 16996, 18046, 36092, 782423, 1564846, 3129692, 5476961, 10953922, 21907844]

約数ペア:

[(1, 21907844), (2, 10953922), (4, 5476961), (7, 3129692), (14, 1564846), (28, 782423), (607, 36092), (1214, 18046), (1289, 16996), (2428, 9023), (2578, 8498), (4249, 5156)]