20963888

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{383}}^1$

素因数の和:713

約数の個数: 40

約数和(自身を含む): 44568576

約数和(自身を除く): 23604688

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 311, 383, 622, 766, 1244, 1532, 2488, 3064, 3421, 4213, 4976, 6128, 6842, 8426, 13684, 16852, 27368, 33704, 54736, 67408, 119113, 238226, 476452, 952904, 1310243, 1905808, 2620486, 5240972, 10481944, 20963888]

約数ペア:

[(1, 20963888), (2, 10481944), (4, 5240972), (8, 2620486), (11, 1905808), (16, 1310243), (22, 952904), (44, 476452), (88, 238226), (176, 119113), (311, 67408), (383, 54736), (622, 33704), (766, 27368), (1244, 16852), (1532, 13684), (2488, 8426), (3064, 6842), (3421, 6128), (4213, 4976)]