19864495

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 28435968

約数和(自身を除く): 8571473

約数列:

[1, 5, 7, 35, 43, 67, 197, 215, 301, 335, 469, 985, 1379, 1505, 2345, 2881, 6895, 8471, 13199, 14405, 20167, 42355, 59297, 65995, 92393, 100835, 296485, 461965, 567557, 2837785, 3972899, 19864495]

約数ペア:

[(1, 19864495), (5, 3972899), (7, 2837785), (35, 567557), (43, 461965), (67, 296485), (197, 100835), (215, 92393), (301, 65995), (335, 59297), (469, 42355), (985, 20167), (1379, 14405), (1505, 13199), (2345, 8471), (2881, 6895)]