77917791

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 125730144

約数和(自身を除く): 47812353

約数列:

[1, 3, 7, 21, 49, 53, 73, 137, 147, 159, 219, 371, 411, 511, 959, 1113, 1533, 2597, 2877, 3577, 3869, 6713, 7261, 7791, 10001, 10731, 11607, 20139, 21783, 27083, 30003, 50827, 70007, 81249, 152481, 189581, 210021, 355789, 490049, 530053, 568743, 1067367, 1470147, 1590159, 3710371, 11131113, 25972597, 77917791]

約数ペア:

[(1, 77917791), (3, 25972597), (7, 11131113), (21, 3710371), (49, 1590159), (53, 1470147), (73, 1067367), (137, 568743), (147, 530053), (159, 490049), (219, 355789), (371, 210021), (411, 189581), (511, 152481), (959, 81249), (1113, 70007), (1533, 50827), (2597, 30003), (2877, 27083), (3577, 21783), (3869, 20139), (6713, 11607), (7261, 10731), (7791, 10001)]