21551488

素因数分解:

$2^7\times 7^1\times {\mathrm{67}}^1\times {\mathrm{359}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 49939200

約数和(自身を除く): 28387712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 67, 112, 128, 134, 224, 268, 359, 448, 469, 536, 718, 896, 938, 1072, 1436, 1876, 2144, 2513, 2872, 3752, 4288, 5026, 5744, 7504, 8576, 10052, 11488, 15008, 20104, 22976, 24053, 30016, 40208, 45952, 48106, 60032, 80416, 96212, 160832, 168371, 192424, 321664, 336742, 384848, 673484, 769696, 1346968, 1539392, 2693936, 3078784, 5387872, 10775744, 21551488]

約数ペア:

[(1, 21551488), (2, 10775744), (4, 5387872), (7, 3078784), (8, 2693936), (14, 1539392), (16, 1346968), (28, 769696), (32, 673484), (56, 384848), (64, 336742), (67, 321664), (112, 192424), (128, 168371), (134, 160832), (224, 96212), (268, 80416), (359, 60032), (448, 48106), (469, 45952), (536, 40208), (718, 30016), (896, 24053), (938, 22976), (1072, 20104), (1436, 15008), (1876, 11488), (2144, 10052), (2513, 8576), (2872, 7504), (3752, 5744), (4288, 5026)]