19990902

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{281}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 40932864

約数和(自身を除く): 20941962

約数列:

[1, 2, 3, 6, 71, 142, 167, 213, 281, 334, 426, 501, 562, 843, 1002, 1686, 11857, 19951, 23714, 35571, 39902, 46927, 59853, 71142, 93854, 119706, 140781, 281562, 3331817, 6663634, 9995451, 19990902]

約数ペア:

[(1, 19990902), (2, 9995451), (3, 6663634), (6, 3331817), (71, 281562), (142, 140781), (167, 119706), (213, 93854), (281, 71142), (334, 59853), (426, 46927), (501, 39902), (562, 35571), (843, 23714), (1002, 19951), (1686, 11857)]