21347144

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 51710400

約数和(自身を除く): 30363256

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 59, 71, 91, 98, 104, 118, 142, 182, 196, 236, 284, 364, 392, 413, 472, 497, 568, 637, 728, 767, 826, 923, 994, 1274, 1534, 1652, 1846, 1988, 2548, 2891, 3068, 3304, 3479, 3692, 3976, 4189, 5096, 5369, 5782, 6136, 6461, 6958, 7384, 8378, 10738, 11564, 12922, 13916, 16756, 21476, 23128, 25844, 27832, 29323, 33512, 37583, 42952, 45227, 51688, 54457, 58646, 75166, 90454, 108914, 117292, 150332, 180908, 205261, 217828, 234584, 300664, 361816, 381199, 410522, 435656, 762398, 821044, 1524796, 1642088, 2668393, 3049592, 5336786, 10673572, 21347144]

約数ペア:

[(1, 21347144), (2, 10673572), (4, 5336786), (7, 3049592), (8, 2668393), (13, 1642088), (14, 1524796), (26, 821044), (28, 762398), (49, 435656), (52, 410522), (56, 381199), (59, 361816), (71, 300664), (91, 234584), (98, 217828), (104, 205261), (118, 180908), (142, 150332), (182, 117292), (196, 108914), (236, 90454), (284, 75166), (364, 58646), (392, 54457), (413, 51688), (472, 45227), (497, 42952), (568, 37583), (637, 33512), (728, 29323), (767, 27832), (826, 25844), (923, 23128), (994, 21476), (1274, 16756), (1534, 13916), (1652, 12922), (1846, 11564), (1988, 10738), (2548, 8378), (2891, 7384), (3068, 6958), (3304, 6461), (3479, 6136), (3692, 5782), (3976, 5369), (4189, 5096)]