21872724

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 57953280

約数和(自身を除く): 36080556

約数列:

[1, 2, 3, 4, 6, 12, 19, 23, 38, 43, 46, 57, 69, 76, 86, 92, 97, 114, 129, 138, 172, 194, 228, 258, 276, 291, 388, 437, 516, 582, 817, 874, 989, 1164, 1311, 1634, 1748, 1843, 1978, 2231, 2451, 2622, 2967, 3268, 3686, 3956, 4171, 4462, 4902, 5244, 5529, 5934, 6693, 7372, 8342, 8924, 9804, 11058, 11868, 12513, 13386, 16684, 18791, 22116, 25026, 26772, 37582, 42389, 50052, 56373, 75164, 79249, 84778, 95933, 112746, 127167, 158498, 169556, 191866, 225492, 237747, 254334, 287799, 316996, 383732, 475494, 508668, 575598, 950988, 1151196, 1822727, 3645454, 5468181, 7290908, 10936362, 21872724]

約数ペア:

[(1, 21872724), (2, 10936362), (3, 7290908), (4, 5468181), (6, 3645454), (12, 1822727), (19, 1151196), (23, 950988), (38, 575598), (43, 508668), (46, 475494), (57, 383732), (69, 316996), (76, 287799), (86, 254334), (92, 237747), (97, 225492), (114, 191866), (129, 169556), (138, 158498), (172, 127167), (194, 112746), (228, 95933), (258, 84778), (276, 79249), (291, 75164), (388, 56373), (437, 50052), (516, 42389), (582, 37582), (817, 26772), (874, 25026), (989, 22116), (1164, 18791), (1311, 16684), (1634, 13386), (1748, 12513), (1843, 11868), (1978, 11058), (2231, 9804), (2451, 8924), (2622, 8342), (2967, 7372), (3268, 6693), (3686, 5934), (3956, 5529), (4171, 5244), (4462, 4902)]