21085090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{673}}^1$

素因数の和:934

約数の個数: 32

約数和(自身を含む): 41103216

約数和(自身を除く): 20018126

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 241, 482, 673, 1205, 1346, 2410, 3133, 3365, 6266, 6730, 8749, 15665, 17498, 31330, 43745, 87490, 162193, 324386, 810965, 1621930, 2108509, 4217018, 10542545, 21085090]

約数ペア:

[(1, 21085090), (2, 10542545), (5, 4217018), (10, 2108509), (13, 1621930), (26, 810965), (65, 324386), (130, 162193), (241, 87490), (482, 43745), (673, 31330), (1205, 17498), (1346, 15665), (2410, 8749), (3133, 6730), (3365, 6266)]