21502130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{857}}^1$

素因数の和:1070

約数の個数: 32

約数和(自身を含む): 41945904

約数和(自身を除く): 20443774

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 193, 386, 857, 965, 1714, 1930, 2509, 4285, 5018, 8570, 11141, 12545, 22282, 25090, 55705, 111410, 165401, 330802, 827005, 1654010, 2150213, 4300426, 10751065, 21502130]

約数ペア:

[(1, 21502130), (2, 10751065), (5, 4300426), (10, 2150213), (13, 1654010), (26, 827005), (65, 330802), (130, 165401), (193, 111410), (386, 55705), (857, 25090), (965, 22282), (1714, 12545), (1930, 11141), (2509, 8570), (4285, 5018)]