21012732

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{761}}^1$

素因数の和:843

約数の個数: 72

約数和(自身を含む): 58247280

約数和(自身を除く): 37234548

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 59, 78, 117, 118, 156, 177, 234, 236, 354, 468, 531, 708, 761, 767, 1062, 1522, 1534, 2124, 2283, 2301, 3044, 3068, 4566, 4602, 6849, 6903, 9132, 9204, 9893, 13698, 13806, 19786, 27396, 27612, 29679, 39572, 44899, 59358, 89037, 89798, 118716, 134697, 178074, 179596, 269394, 356148, 404091, 538788, 583687, 808182, 1167374, 1616364, 1751061, 2334748, 3502122, 5253183, 7004244, 10506366, 21012732]

約数ペア:

[(1, 21012732), (2, 10506366), (3, 7004244), (4, 5253183), (6, 3502122), (9, 2334748), (12, 1751061), (13, 1616364), (18, 1167374), (26, 808182), (36, 583687), (39, 538788), (52, 404091), (59, 356148), (78, 269394), (117, 179596), (118, 178074), (156, 134697), (177, 118716), (234, 89798), (236, 89037), (354, 59358), (468, 44899), (531, 39572), (708, 29679), (761, 27612), (767, 27396), (1062, 19786), (1522, 13806), (1534, 13698), (2124, 9893), (2283, 9204), (2301, 9132), (3044, 6903), (3068, 6849), (4566, 4602)]