28389473

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 35347752

約数和(自身を除く): 6958279

約数列:

[1, 7, 17, 49, 119, 173, 197, 833, 1211, 1379, 2941, 3349, 8477, 9653, 20587, 23443, 34081, 144109, 164101, 238567, 579377, 1669969, 4055639, 28389473]

約数ペア:

[(1, 28389473), (7, 4055639), (17, 1669969), (49, 579377), (119, 238567), (173, 164101), (197, 144109), (833, 34081), (1211, 23443), (1379, 20587), (2941, 9653), (3349, 8477)]