20435865

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{431}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13778535

約数列:

[1, 3, 5, 15, 29, 87, 109, 145, 327, 431, 435, 545, 1293, 1635, 2155, 3161, 6465, 9483, 12499, 15805, 37497, 46979, 47415, 62495, 140937, 187485, 234895, 704685, 1362391, 4087173, 6811955, 20435865]

約数ペア:

[(1, 20435865), (3, 6811955), (5, 4087173), (15, 1362391), (29, 704685), (87, 234895), (109, 187485), (145, 140937), (327, 62495), (431, 47415), (435, 46979), (545, 37497), (1293, 15805), (1635, 12499), (2155, 9483), (3161, 6465)]