20990424

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1373}}^1$

素因数の和:1409

約数の個数: 96

約数和(自身を含む): 65787120

約数和(自身を除く): 44796696

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 49, 52, 56, 78, 84, 91, 98, 104, 147, 156, 168, 182, 196, 273, 294, 312, 364, 392, 546, 588, 637, 728, 1092, 1176, 1274, 1373, 1911, 2184, 2548, 2746, 3822, 4119, 5096, 5492, 7644, 8238, 9611, 10984, 15288, 16476, 17849, 19222, 28833, 32952, 35698, 38444, 53547, 57666, 67277, 71396, 76888, 107094, 115332, 124943, 134554, 142792, 201831, 214188, 230664, 249886, 269108, 374829, 403662, 428376, 499772, 538216, 749658, 807324, 874601, 999544, 1499316, 1614648, 1749202, 2623803, 2998632, 3498404, 5247606, 6996808, 10495212, 20990424]

約数ペア:

[(1, 20990424), (2, 10495212), (3, 6996808), (4, 5247606), (6, 3498404), (7, 2998632), (8, 2623803), (12, 1749202), (13, 1614648), (14, 1499316), (21, 999544), (24, 874601), (26, 807324), (28, 749658), (39, 538216), (42, 499772), (49, 428376), (52, 403662), (56, 374829), (78, 269108), (84, 249886), (91, 230664), (98, 214188), (104, 201831), (147, 142792), (156, 134554), (168, 124943), (182, 115332), (196, 107094), (273, 76888), (294, 71396), (312, 67277), (364, 57666), (392, 53547), (546, 38444), (588, 35698), (637, 32952), (728, 28833), (1092, 19222), (1176, 17849), (1274, 16476), (1373, 15288), (1911, 10984), (2184, 9611), (2548, 8238), (2746, 7644), (3822, 5492), (4119, 5096)]