21942705

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:801

約数の個数: 32

約数和(自身を含む): 36869760

約数和(自身を除く): 14927055

約数列:

[1, 3, 5, 15, 29, 73, 87, 145, 219, 365, 435, 691, 1095, 2073, 2117, 3455, 6351, 10365, 10585, 20039, 31755, 50443, 60117, 100195, 151329, 252215, 300585, 756645, 1462847, 4388541, 7314235, 21942705]

約数ペア:

[(1, 21942705), (3, 7314235), (5, 4388541), (15, 1462847), (29, 756645), (73, 300585), (87, 252215), (145, 151329), (219, 100195), (365, 60117), (435, 50443), (691, 31755), (1095, 20039), (2073, 10585), (2117, 10365), (3455, 6351)]