21395244

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:199

約数の個数: 96

約数和(自身を含む): 57576960

約数和(自身を除く): 36181716

約数列:

[1, 2, 3, 4, 6, 12, 13, 23, 26, 39, 46, 52, 67, 69, 78, 89, 92, 134, 138, 156, 178, 201, 267, 268, 276, 299, 356, 402, 534, 598, 804, 871, 897, 1068, 1157, 1196, 1541, 1742, 1794, 2047, 2314, 2613, 3082, 3471, 3484, 3588, 4094, 4623, 4628, 5226, 5963, 6141, 6164, 6942, 8188, 9246, 10452, 11926, 12282, 13884, 17889, 18492, 20033, 23852, 24564, 26611, 35778, 40066, 53222, 60099, 71556, 77519, 79833, 80132, 106444, 120198, 137149, 155038, 159666, 232557, 240396, 274298, 310076, 319332, 411447, 465114, 548596, 822894, 930228, 1645788, 1782937, 3565874, 5348811, 7131748, 10697622, 21395244]

約数ペア:

[(1, 21395244), (2, 10697622), (3, 7131748), (4, 5348811), (6, 3565874), (12, 1782937), (13, 1645788), (23, 930228), (26, 822894), (39, 548596), (46, 465114), (52, 411447), (67, 319332), (69, 310076), (78, 274298), (89, 240396), (92, 232557), (134, 159666), (138, 155038), (156, 137149), (178, 120198), (201, 106444), (267, 80132), (268, 79833), (276, 77519), (299, 71556), (356, 60099), (402, 53222), (534, 40066), (598, 35778), (804, 26611), (871, 24564), (897, 23852), (1068, 20033), (1157, 18492), (1196, 17889), (1541, 13884), (1742, 12282), (1794, 11926), (2047, 10452), (2314, 9246), (2613, 8188), (3082, 6942), (3471, 6164), (3484, 6141), (3588, 5963), (4094, 5226), (4623, 4628)]