21149037

素因数分解:

$3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 96

約数和(自身を含む): 41932800

約数和(自身を除く): 20783763

約数列:

[1, 3, 7, 9, 13, 17, 21, 31, 39, 49, 51, 63, 91, 93, 117, 119, 147, 153, 217, 221, 273, 279, 343, 357, 403, 441, 527, 637, 651, 663, 819, 833, 1029, 1071, 1209, 1519, 1547, 1581, 1911, 1953, 1989, 2499, 2821, 3087, 3627, 3689, 4459, 4557, 4641, 4743, 5733, 5831, 6851, 7497, 8463, 10633, 10829, 11067, 13377, 13671, 13923, 17493, 19747, 20553, 25389, 25823, 31899, 32487, 33201, 40131, 47957, 52479, 59241, 61659, 75803, 77469, 95697, 97461, 138229, 143871, 177723, 180761, 227409, 232407, 335699, 414687, 431613, 542283, 682227, 1007097, 1244061, 1626849, 2349893, 3021291, 7049679, 21149037]

約数ペア:

[(1, 21149037), (3, 7049679), (7, 3021291), (9, 2349893), (13, 1626849), (17, 1244061), (21, 1007097), (31, 682227), (39, 542283), (49, 431613), (51, 414687), (63, 335699), (91, 232407), (93, 227409), (117, 180761), (119, 177723), (147, 143871), (153, 138229), (217, 97461), (221, 95697), (273, 77469), (279, 75803), (343, 61659), (357, 59241), (403, 52479), (441, 47957), (527, 40131), (637, 33201), (651, 32487), (663, 31899), (819, 25823), (833, 25389), (1029, 20553), (1071, 19747), (1209, 17493), (1519, 13923), (1547, 13671), (1581, 13377), (1911, 11067), (1953, 10829), (1989, 10633), (2499, 8463), (2821, 7497), (3087, 6851), (3627, 5831), (3689, 5733), (4459, 4743), (4557, 4641)]