21026810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2293}}^1$

素因数の和:2438

約数の個数: 32

約数和(自身を含む): 43604352

約数和(自身を除く): 22577542

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 131, 262, 655, 917, 1310, 1834, 2293, 4585, 4586, 9170, 11465, 16051, 22930, 32102, 80255, 160510, 300383, 600766, 1501915, 2102681, 3003830, 4205362, 10513405, 21026810]

約数ペア:

[(1, 21026810), (2, 10513405), (5, 4205362), (7, 3003830), (10, 2102681), (14, 1501915), (35, 600766), (70, 300383), (131, 160510), (262, 80255), (655, 32102), (917, 22930), (1310, 16051), (1834, 11465), (2293, 9170), (4585, 4586)]