21902230

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2251}}^1$

素因数の和:2404

約数の個数: 32

約数和(自身を含む): 45400320

約数和(自身を除く): 23498090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2251, 4502, 4865, 9730, 11255, 15757, 22510, 31514, 78785, 157570, 312889, 625778, 1564445, 2190223, 3128890, 4380446, 10951115, 21902230]

約数ペア:

[(1, 21902230), (2, 10951115), (5, 4380446), (7, 3128890), (10, 2190223), (14, 1564445), (35, 625778), (70, 312889), (139, 157570), (278, 78785), (695, 31514), (973, 22510), (1390, 15757), (1946, 11255), (2251, 9730), (4502, 4865)]