21502208

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:120

約数の個数: 108

約数和(自身を含む): 53863488

約数和(自身を除く): 32361280

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 71, 91, 104, 112, 128, 142, 169, 182, 208, 224, 256, 284, 338, 364, 416, 448, 497, 568, 676, 728, 832, 896, 923, 994, 1136, 1183, 1352, 1456, 1664, 1792, 1846, 1988, 2272, 2366, 2704, 2912, 3328, 3692, 3976, 4544, 4732, 5408, 5824, 6461, 7384, 7952, 9088, 9464, 10816, 11648, 11999, 12922, 14768, 15904, 18176, 18928, 21632, 23296, 23998, 25844, 29536, 31808, 37856, 43264, 47996, 51688, 59072, 63616, 75712, 83993, 95992, 103376, 118144, 127232, 151424, 167986, 191984, 206752, 236288, 302848, 335972, 383968, 413504, 671944, 767936, 827008, 1343888, 1535872, 1654016, 2687776, 3071744, 5375552, 10751104, 21502208]

約数ペア:

[(1, 21502208), (2, 10751104), (4, 5375552), (7, 3071744), (8, 2687776), (13, 1654016), (14, 1535872), (16, 1343888), (26, 827008), (28, 767936), (32, 671944), (52, 413504), (56, 383968), (64, 335972), (71, 302848), (91, 236288), (104, 206752), (112, 191984), (128, 167986), (142, 151424), (169, 127232), (182, 118144), (208, 103376), (224, 95992), (256, 83993), (284, 75712), (338, 63616), (364, 59072), (416, 51688), (448, 47996), (497, 43264), (568, 37856), (676, 31808), (728, 29536), (832, 25844), (896, 23998), (923, 23296), (994, 21632), (1136, 18928), (1183, 18176), (1352, 15904), (1456, 14768), (1664, 12922), (1792, 11999), (1846, 11648), (1988, 10816), (2272, 9464), (2366, 9088), (2704, 7952), (2912, 7384), (3328, 6461), (3692, 5824), (3976, 5408), (4544, 4732)]