18683990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1423}}^1$

素因数の和:1544

約数の個数: 32

約数和(自身を含む): 36602496

約数和(自身を除く): 17918506

約数列:

[1, 2, 5, 10, 13, 26, 65, 101, 130, 202, 505, 1010, 1313, 1423, 2626, 2846, 6565, 7115, 13130, 14230, 18499, 36998, 92495, 143723, 184990, 287446, 718615, 1437230, 1868399, 3736798, 9341995, 18683990]

約数ペア:

[(1, 18683990), (2, 9341995), (5, 3736798), (10, 1868399), (13, 1437230), (26, 718615), (65, 287446), (101, 184990), (130, 143723), (202, 92495), (505, 36998), (1010, 18499), (1313, 14230), (1423, 13130), (2626, 7115), (2846, 6565)]