20986434

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{863}}^1$

素因数の和:1071

約数の個数: 48

約数和(自身を含む): 52296192

約数和(自身を除く): 31309758

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 193, 386, 579, 863, 1158, 1351, 1726, 1737, 2589, 2702, 3474, 4053, 5178, 6041, 7767, 8106, 12082, 12159, 15534, 18123, 24318, 36246, 54369, 108738, 166559, 333118, 499677, 999354, 1165913, 1499031, 2331826, 2998062, 3497739, 6995478, 10493217, 20986434]

約数ペア:

[(1, 20986434), (2, 10493217), (3, 6995478), (6, 3497739), (7, 2998062), (9, 2331826), (14, 1499031), (18, 1165913), (21, 999354), (42, 499677), (63, 333118), (126, 166559), (193, 108738), (386, 54369), (579, 36246), (863, 24318), (1158, 18123), (1351, 15534), (1726, 12159), (1737, 12082), (2589, 8106), (2702, 7767), (3474, 6041), (4053, 5178)]