20888728

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3301}}^1$

素因数の和:3427

約数の個数: 32

約数和(自身を含む): 45171360

約数和(自身を除く): 24282632

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 3301, 6328, 6602, 13204, 23107, 26408, 46214, 92428, 184856, 373013, 746026, 1492052, 2611091, 2984104, 5222182, 10444364, 20888728]

約数ペア:

[(1, 20888728), (2, 10444364), (4, 5222182), (7, 2984104), (8, 2611091), (14, 1492052), (28, 746026), (56, 373013), (113, 184856), (226, 92428), (452, 46214), (791, 26408), (904, 23107), (1582, 13204), (3164, 6602), (3301, 6328)]