19589990399

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{509}}^1\times {\mathrm{863}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 23519600640

約数和(自身を除く): 3929610241

約数列:

[1, 7, 23, 161, 277, 509, 863, 1939, 3563, 6041, 6371, 11707, 19849, 44597, 81949, 138943, 140993, 239051, 439267, 986951, 1673357, 3074869, 3242839, 5498173, 10103141, 22699873, 38487211, 70721987, 121676959, 851738713, 2798570057, 19589990399]

約数ペア:

[(1, 19589990399), (7, 2798570057), (23, 851738713), (161, 121676959), (277, 70721987), (509, 38487211), (863, 22699873), (1939, 10103141), (3563, 5498173), (6041, 3242839), (6371, 3074869), (11707, 1673357), (19849, 986951), (44597, 439267), (81949, 239051), (138943, 140993)]