20984292

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{677}}^1$

素因数の和:738

約数の個数: 96

約数和(自身を含む): 63786240

約数和(自身を除く): 42801948

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 41, 42, 54, 63, 82, 84, 108, 123, 126, 164, 189, 246, 252, 287, 369, 378, 492, 574, 677, 738, 756, 861, 1107, 1148, 1354, 1476, 1722, 2031, 2214, 2583, 2708, 3444, 4062, 4428, 4739, 5166, 6093, 7749, 8124, 9478, 10332, 12186, 14217, 15498, 18279, 18956, 24372, 27757, 28434, 30996, 36558, 42651, 55514, 56868, 73116, 83271, 85302, 111028, 127953, 166542, 170604, 194299, 249813, 255906, 333084, 388598, 499626, 511812, 582897, 749439, 777196, 999252, 1165794, 1498878, 1748691, 2331588, 2997756, 3497382, 5246073, 6994764, 10492146, 20984292]

約数ペア:

[(1, 20984292), (2, 10492146), (3, 6994764), (4, 5246073), (6, 3497382), (7, 2997756), (9, 2331588), (12, 1748691), (14, 1498878), (18, 1165794), (21, 999252), (27, 777196), (28, 749439), (36, 582897), (41, 511812), (42, 499626), (54, 388598), (63, 333084), (82, 255906), (84, 249813), (108, 194299), (123, 170604), (126, 166542), (164, 127953), (189, 111028), (246, 85302), (252, 83271), (287, 73116), (369, 56868), (378, 55514), (492, 42651), (574, 36558), (677, 30996), (738, 28434), (756, 27757), (861, 24372), (1107, 18956), (1148, 18279), (1354, 15498), (1476, 14217), (1722, 12186), (2031, 10332), (2214, 9478), (2583, 8124), (2708, 7749), (3444, 6093), (4062, 5166), (4428, 4739)]