20696403

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1613}}^1$

素因数の和:1683

約数の個数: 32

約数和(自身を含む): 34707456

約数和(自身を除く): 14011053

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1613, 1833, 4277, 4839, 11291, 12831, 20969, 33873, 62907, 75811, 146783, 227433, 440349, 530677, 985543, 1592031, 2956629, 6898801, 20696403]

約数ペア:

[(1, 20696403), (3, 6898801), (7, 2956629), (13, 1592031), (21, 985543), (39, 530677), (47, 440349), (91, 227433), (141, 146783), (273, 75811), (329, 62907), (611, 33873), (987, 20969), (1613, 12831), (1833, 11291), (4277, 4839)]