20953968

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:235

約数の個数: 120

約数和(自身を含む): 64460160

約数和(自身を除く): 43506192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 59, 84, 98, 112, 118, 147, 151, 168, 177, 196, 236, 294, 302, 336, 354, 392, 413, 453, 472, 588, 604, 708, 784, 826, 906, 944, 1057, 1176, 1208, 1239, 1416, 1652, 1812, 2114, 2352, 2416, 2478, 2832, 2891, 3171, 3304, 3624, 4228, 4956, 5782, 6342, 6608, 7248, 7399, 8456, 8673, 8909, 9912, 11564, 12684, 14798, 16912, 17346, 17818, 19824, 22197, 23128, 25368, 26727, 29596, 34692, 35636, 44394, 46256, 50736, 53454, 59192, 62363, 69384, 71272, 88788, 106908, 118384, 124726, 138768, 142544, 177576, 187089, 213816, 249452, 355152, 374178, 427632, 436541, 498904, 748356, 873082, 997808, 1309623, 1496712, 1746164, 2619246, 2993424, 3492328, 5238492, 6984656, 10476984, 20953968]

約数ペア:

[(1, 20953968), (2, 10476984), (3, 6984656), (4, 5238492), (6, 3492328), (7, 2993424), (8, 2619246), (12, 1746164), (14, 1496712), (16, 1309623), (21, 997808), (24, 873082), (28, 748356), (42, 498904), (48, 436541), (49, 427632), (56, 374178), (59, 355152), (84, 249452), (98, 213816), (112, 187089), (118, 177576), (147, 142544), (151, 138768), (168, 124726), (177, 118384), (196, 106908), (236, 88788), (294, 71272), (302, 69384), (336, 62363), (354, 59192), (392, 53454), (413, 50736), (453, 46256), (472, 44394), (588, 35636), (604, 34692), (708, 29596), (784, 26727), (826, 25368), (906, 23128), (944, 22197), (1057, 19824), (1176, 17818), (1208, 17346), (1239, 16912), (1416, 14798), (1652, 12684), (1812, 11564), (2114, 9912), (2352, 8909), (2416, 8673), (2478, 8456), (2832, 7399), (2891, 7248), (3171, 6608), (3304, 6342), (3624, 5782), (4228, 4956)]