19188664

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:532

約数の個数: 48

約数和(自身を含む): 40554360

約数和(自身を除く): 21365696

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 121, 172, 242, 344, 461, 473, 484, 922, 946, 968, 1844, 1892, 3688, 3784, 5071, 5203, 10142, 10406, 19823, 20284, 20812, 39646, 40568, 41624, 55781, 79292, 111562, 158584, 218053, 223124, 436106, 446248, 872212, 1744424, 2398583, 4797166, 9594332, 19188664]

約数ペア:

[(1, 19188664), (2, 9594332), (4, 4797166), (8, 2398583), (11, 1744424), (22, 872212), (43, 446248), (44, 436106), (86, 223124), (88, 218053), (121, 158584), (172, 111562), (242, 79292), (344, 55781), (461, 41624), (473, 40568), (484, 39646), (922, 20812), (946, 20284), (968, 19823), (1844, 10406), (1892, 10142), (3688, 5203), (3784, 5071)]