68972787

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:500

約数の個数: 36

約数和(自身を含む): 108996264

約数和(自身を除く): 40023477

約数列:

[1, 3, 9, 13, 39, 117, 137, 169, 331, 411, 507, 993, 1233, 1521, 1781, 2979, 4303, 5343, 12909, 16029, 23153, 38727, 45347, 55939, 69459, 136041, 167817, 208377, 408123, 503451, 589511, 1768533, 5305599, 7663643, 22990929, 68972787]

約数ペア:

[(1, 68972787), (3, 22990929), (9, 7663643), (13, 5305599), (39, 1768533), (117, 589511), (137, 503451), (169, 408123), (331, 208377), (411, 167817), (507, 136041), (993, 69459), (1233, 55939), (1521, 45347), (1781, 38727), (2979, 23153), (4303, 16029), (5343, 12909)]