20196944

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{773}}^1$

素因数の和:875

約数の個数: 40

約数和(自身を含む): 41461632

約数和(自身を除く): 21264688

約数列:

[1, 2, 4, 8, 16, 23, 46, 71, 92, 142, 184, 284, 368, 568, 773, 1136, 1546, 1633, 3092, 3266, 6184, 6532, 12368, 13064, 17779, 26128, 35558, 54883, 71116, 109766, 142232, 219532, 284464, 439064, 878128, 1262309, 2524618, 5049236, 10098472, 20196944]

約数ペア:

[(1, 20196944), (2, 10098472), (4, 5049236), (8, 2524618), (16, 1262309), (23, 878128), (46, 439064), (71, 284464), (92, 219532), (142, 142232), (184, 109766), (284, 71116), (368, 54883), (568, 35558), (773, 26128), (1136, 17779), (1546, 13064), (1633, 12368), (3092, 6532), (3266, 6184)]