21358242

素因数分解:

$2^1\times 3^7\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 50774400

約数和(自身を除く): 29416158

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 257, 342, 486, 513, 514, 729, 771, 1026, 1458, 1539, 1542, 2187, 2313, 3078, 4374, 4617, 4626, 4883, 6939, 9234, 9766, 13851, 13878, 14649, 20817, 27702, 29298, 41553, 41634, 43947, 62451, 83106, 87894, 124902, 131841, 187353, 263682, 374706, 395523, 562059, 791046, 1124118, 1186569, 2373138, 3559707, 7119414, 10679121, 21358242]

約数ペア:

[(1, 21358242), (2, 10679121), (3, 7119414), (6, 3559707), (9, 2373138), (18, 1186569), (19, 1124118), (27, 791046), (38, 562059), (54, 395523), (57, 374706), (81, 263682), (114, 187353), (162, 131841), (171, 124902), (243, 87894), (257, 83106), (342, 62451), (486, 43947), (513, 41634), (514, 41553), (729, 29298), (771, 27702), (1026, 20817), (1458, 14649), (1539, 13878), (1542, 13851), (2187, 9766), (2313, 9234), (3078, 6939), (4374, 4883), (4617, 4626)]