21907130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2389}}^1$

素因数の和:2534

約数の個数: 32

約数和(自身を含む): 45429120

約数和(自身を除く): 23521990

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 655, 917, 1310, 1834, 2389, 4585, 4778, 9170, 11945, 16723, 23890, 33446, 83615, 167230, 312959, 625918, 1564795, 2190713, 3129590, 4381426, 10953565, 21907130]

約数ペア:

[(1, 21907130), (2, 10953565), (5, 4381426), (7, 3129590), (10, 2190713), (14, 1564795), (35, 625918), (70, 312959), (131, 167230), (262, 83615), (655, 33446), (917, 23890), (1310, 16723), (1834, 11945), (2389, 9170), (4585, 4778)]