21052038

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:122

約数の個数: 128

約数和(自身を含む): 56033280

約数和(自身を除く): 34981242

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 23, 31, 37, 38, 42, 46, 57, 62, 69, 74, 93, 111, 114, 133, 138, 161, 186, 217, 222, 259, 266, 322, 399, 434, 437, 483, 518, 589, 651, 703, 713, 777, 798, 851, 874, 966, 1147, 1178, 1302, 1311, 1406, 1426, 1554, 1702, 1767, 2109, 2139, 2294, 2553, 2622, 3059, 3441, 3534, 4123, 4218, 4278, 4921, 4991, 5106, 5957, 6118, 6882, 8029, 8246, 9177, 9842, 9982, 11914, 12369, 13547, 14763, 14973, 16058, 16169, 17871, 18354, 21793, 24087, 24738, 26381, 27094, 29526, 29946, 32338, 35742, 40641, 43586, 48174, 48507, 52762, 65379, 79143, 81282, 94829, 97014, 113183, 130758, 152551, 158286, 184667, 189658, 226366, 284487, 305102, 339549, 369334, 457653, 501239, 554001, 568974, 679098, 915306, 1002478, 1108002, 1503717, 3007434, 3508673, 7017346, 10526019, 21052038]

約数ペア:

[(1, 21052038), (2, 10526019), (3, 7017346), (6, 3508673), (7, 3007434), (14, 1503717), (19, 1108002), (21, 1002478), (23, 915306), (31, 679098), (37, 568974), (38, 554001), (42, 501239), (46, 457653), (57, 369334), (62, 339549), (69, 305102), (74, 284487), (93, 226366), (111, 189658), (114, 184667), (133, 158286), (138, 152551), (161, 130758), (186, 113183), (217, 97014), (222, 94829), (259, 81282), (266, 79143), (322, 65379), (399, 52762), (434, 48507), (437, 48174), (483, 43586), (518, 40641), (589, 35742), (651, 32338), (703, 29946), (713, 29526), (777, 27094), (798, 26381), (851, 24738), (874, 24087), (966, 21793), (1147, 18354), (1178, 17871), (1302, 16169), (1311, 16058), (1406, 14973), (1426, 14763), (1554, 13547), (1702, 12369), (1767, 11914), (2109, 9982), (2139, 9842), (2294, 9177), (2553, 8246), (2622, 8029), (3059, 6882), (3441, 6118), (3534, 5957), (4123, 5106), (4218, 4991), (4278, 4921)]