20581764

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 62052480

約数和(自身を除く): 41470716

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 29, 34, 42, 49, 51, 58, 68, 71, 84, 87, 98, 102, 116, 119, 142, 147, 174, 196, 203, 204, 213, 238, 284, 294, 348, 357, 406, 426, 476, 493, 497, 588, 609, 714, 812, 833, 852, 986, 994, 1207, 1218, 1421, 1428, 1479, 1491, 1666, 1972, 1988, 2059, 2414, 2436, 2499, 2842, 2958, 2982, 3332, 3451, 3479, 3621, 4118, 4263, 4828, 4998, 5684, 5916, 5964, 6177, 6902, 6958, 7242, 8236, 8449, 8526, 9996, 10353, 10437, 12354, 13804, 13916, 14413, 14484, 16898, 17052, 20706, 20874, 24157, 24708, 25347, 28826, 33796, 35003, 41412, 41748, 43239, 48314, 50694, 57652, 59143, 70006, 72471, 86478, 96628, 100891, 101388, 105009, 118286, 140012, 144942, 172956, 177429, 201782, 210018, 236572, 245021, 289884, 302673, 354858, 403564, 420036, 490042, 605346, 709716, 735063, 980084, 1210692, 1470126, 1715147, 2940252, 3430294, 5145441, 6860588, 10290882, 20581764]

約数ペア:

[(1, 20581764), (2, 10290882), (3, 6860588), (4, 5145441), (6, 3430294), (7, 2940252), (12, 1715147), (14, 1470126), (17, 1210692), (21, 980084), (28, 735063), (29, 709716), (34, 605346), (42, 490042), (49, 420036), (51, 403564), (58, 354858), (68, 302673), (71, 289884), (84, 245021), (87, 236572), (98, 210018), (102, 201782), (116, 177429), (119, 172956), (142, 144942), (147, 140012), (174, 118286), (196, 105009), (203, 101388), (204, 100891), (213, 96628), (238, 86478), (284, 72471), (294, 70006), (348, 59143), (357, 57652), (406, 50694), (426, 48314), (476, 43239), (493, 41748), (497, 41412), (588, 35003), (609, 33796), (714, 28826), (812, 25347), (833, 24708), (852, 24157), (986, 20874), (994, 20706), (1207, 17052), (1218, 16898), (1421, 14484), (1428, 14413), (1479, 13916), (1491, 13804), (1666, 12354), (1972, 10437), (1988, 10353), (2059, 9996), (2414, 8526), (2436, 8449), (2499, 8236), (2842, 7242), (2958, 6958), (2982, 6902), (3332, 6177), (3451, 5964), (3479, 5916), (3621, 5684), (4118, 4998), (4263, 4828)]