21612370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2003}}^1$

素因数の和:2106

約数の個数: 32

約数和(自身を含む): 42420672

約数和(自身を除く): 20808302

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 415, 830, 1079, 2003, 2158, 4006, 5395, 10015, 10790, 20030, 26039, 52078, 130195, 166249, 260390, 332498, 831245, 1662490, 2161237, 4322474, 10806185, 21612370]

約数ペア:

[(1, 21612370), (2, 10806185), (5, 4322474), (10, 2161237), (13, 1662490), (26, 831245), (65, 332498), (83, 260390), (130, 166249), (166, 130195), (415, 52078), (830, 26039), (1079, 20030), (2003, 10790), (2158, 10015), (4006, 5395)]