21320210

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{1511}}^1$

素因数の和:1618

約数の個数: 32

約数和(自身を含む): 41150592

約数和(自身を除く): 19830382

約数列:

[1, 2, 5, 10, 17, 34, 83, 85, 166, 170, 415, 830, 1411, 1511, 2822, 3022, 7055, 7555, 14110, 15110, 25687, 51374, 125413, 128435, 250826, 256870, 627065, 1254130, 2132021, 4264042, 10660105, 21320210]

約数ペア:

[(1, 21320210), (2, 10660105), (5, 4264042), (10, 2132021), (17, 1254130), (34, 627065), (83, 256870), (85, 250826), (166, 128435), (170, 125413), (415, 51374), (830, 25687), (1411, 15110), (1511, 14110), (2822, 7555), (3022, 7055)]