18319908243

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{12569}}^1$

素因数の和:12892

約数の個数: 64

約数和(自身を含む): 31760870400

約数和(自身を除く): 13440962157

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 281, 399, 741, 843, 1729, 1967, 3653, 5187, 5339, 5901, 10959, 12569, 16017, 25571, 37373, 37707, 69407, 76713, 87983, 112119, 163397, 208221, 238811, 263949, 485849, 490191, 716433, 1143779, 1457547, 1671677, 3104543, 3431337, 3531889, 5015031, 9313629, 10595667, 21731801, 24723223, 45914557, 65195403, 67105891, 74169669, 137743671, 201317673, 321401899, 469741237, 872376583, 964205697, 1409223711, 2617129749, 6106636081, 18319908243]

約数ペア:

[(1, 18319908243), (3, 6106636081), (7, 2617129749), (13, 1409223711), (19, 964205697), (21, 872376583), (39, 469741237), (57, 321401899), (91, 201317673), (133, 137743671), (247, 74169669), (273, 67105891), (281, 65195403), (399, 45914557), (741, 24723223), (843, 21731801), (1729, 10595667), (1967, 9313629), (3653, 5015031), (5187, 3531889), (5339, 3431337), (5901, 3104543), (10959, 1671677), (12569, 1457547), (16017, 1143779), (25571, 716433), (37373, 490191), (37707, 485849), (69407, 263949), (76713, 238811), (87983, 208221), (112119, 163397)]