20941128

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^2\times {\mathrm{1721}}^1$

素因数の和:1759

約数の個数: 72

約数和(自身を含む): 61449570

約数和(自身を除く): 40508442

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 169, 234, 312, 338, 468, 507, 676, 936, 1014, 1352, 1521, 1721, 2028, 3042, 3442, 4056, 5163, 6084, 6884, 10326, 12168, 13768, 15489, 20652, 22373, 30978, 41304, 44746, 61956, 67119, 89492, 123912, 134238, 178984, 201357, 268476, 290849, 402714, 536952, 581698, 805428, 872547, 1163396, 1610856, 1745094, 2326792, 2617641, 3490188, 5235282, 6980376, 10470564, 20941128]

約数ペア:

[(1, 20941128), (2, 10470564), (3, 6980376), (4, 5235282), (6, 3490188), (8, 2617641), (9, 2326792), (12, 1745094), (13, 1610856), (18, 1163396), (24, 872547), (26, 805428), (36, 581698), (39, 536952), (52, 402714), (72, 290849), (78, 268476), (104, 201357), (117, 178984), (156, 134238), (169, 123912), (234, 89492), (312, 67119), (338, 61956), (468, 44746), (507, 41304), (676, 30978), (936, 22373), (1014, 20652), (1352, 15489), (1521, 13768), (1721, 12168), (2028, 10326), (3042, 6884), (3442, 6084), (4056, 5163)]