1991124

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 5503680

約数和(自身を除く): 3512556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 41, 57, 71, 76, 82, 114, 123, 142, 164, 171, 213, 228, 246, 284, 342, 369, 426, 492, 639, 684, 738, 779, 852, 1278, 1349, 1476, 1558, 2337, 2556, 2698, 2911, 3116, 4047, 4674, 5396, 5822, 7011, 8094, 8733, 9348, 11644, 12141, 14022, 16188, 17466, 24282, 26199, 28044, 34932, 48564, 52398, 55309, 104796, 110618, 165927, 221236, 331854, 497781, 663708, 995562, 1991124]

約数ペア:

[(1, 1991124), (2, 995562), (3, 663708), (4, 497781), (6, 331854), (9, 221236), (12, 165927), (18, 110618), (19, 104796), (36, 55309), (38, 52398), (41, 48564), (57, 34932), (71, 28044), (76, 26199), (82, 24282), (114, 17466), (123, 16188), (142, 14022), (164, 12141), (171, 11644), (213, 9348), (228, 8733), (246, 8094), (284, 7011), (342, 5822), (369, 5396), (426, 4674), (492, 4047), (639, 3116), (684, 2911), (738, 2698), (779, 2556), (852, 2337), (1278, 1558), (1349, 1476)]