21766878

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 60821280

約数和(自身を除く): 39054402

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 29, 37, 42, 46, 49, 58, 63, 69, 74, 87, 98, 111, 126, 138, 147, 161, 174, 203, 207, 222, 259, 261, 294, 322, 333, 406, 414, 441, 483, 518, 522, 609, 666, 667, 777, 851, 882, 966, 1073, 1127, 1218, 1334, 1421, 1449, 1554, 1702, 1813, 1827, 2001, 2146, 2254, 2331, 2553, 2842, 2898, 3219, 3381, 3626, 3654, 4002, 4263, 4662, 4669, 5106, 5439, 5957, 6003, 6438, 6762, 7511, 7659, 8526, 9338, 9657, 10143, 10878, 11914, 12006, 12789, 14007, 15022, 15318, 16317, 17871, 19314, 20286, 22533, 24679, 25578, 28014, 32634, 32683, 35742, 41699, 42021, 45066, 49358, 52577, 53613, 65366, 67599, 74037, 83398, 84042, 98049, 105154, 107226, 125097, 135198, 148074, 157731, 172753, 196098, 222111, 250194, 294147, 315462, 345506, 375291, 444222, 473193, 518259, 588294, 750582, 946386, 1036518, 1209271, 1554777, 2418542, 3109554, 3627813, 7255626, 10883439, 21766878]

約数ペア:

[(1, 21766878), (2, 10883439), (3, 7255626), (6, 3627813), (7, 3109554), (9, 2418542), (14, 1554777), (18, 1209271), (21, 1036518), (23, 946386), (29, 750582), (37, 588294), (42, 518259), (46, 473193), (49, 444222), (58, 375291), (63, 345506), (69, 315462), (74, 294147), (87, 250194), (98, 222111), (111, 196098), (126, 172753), (138, 157731), (147, 148074), (161, 135198), (174, 125097), (203, 107226), (207, 105154), (222, 98049), (259, 84042), (261, 83398), (294, 74037), (322, 67599), (333, 65366), (406, 53613), (414, 52577), (441, 49358), (483, 45066), (518, 42021), (522, 41699), (609, 35742), (666, 32683), (667, 32634), (777, 28014), (851, 25578), (882, 24679), (966, 22533), (1073, 20286), (1127, 19314), (1218, 17871), (1334, 16317), (1421, 15318), (1449, 15022), (1554, 14007), (1702, 12789), (1813, 12006), (1827, 11914), (2001, 10878), (2146, 10143), (2254, 9657), (2331, 9338), (2553, 8526), (2842, 7659), (2898, 7511), (3219, 6762), (3381, 6438), (3626, 6003), (3654, 5957), (4002, 5439), (4263, 5106), (4662, 4669)]