19621504

素因数分解:

$2^7\times 7^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:441

約数の個数: 64

約数和(自身を含む): 45532800

約数和(自身を除く): 25911296

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 224, 244, 359, 427, 448, 488, 718, 854, 896, 976, 1436, 1708, 1952, 2513, 2872, 3416, 3904, 5026, 5744, 6832, 7808, 10052, 11488, 13664, 20104, 21899, 22976, 27328, 40208, 43798, 45952, 54656, 80416, 87596, 153293, 160832, 175192, 306586, 321664, 350384, 613172, 700768, 1226344, 1401536, 2452688, 2803072, 4905376, 9810752, 19621504]

約数ペア:

[(1, 19621504), (2, 9810752), (4, 4905376), (7, 2803072), (8, 2452688), (14, 1401536), (16, 1226344), (28, 700768), (32, 613172), (56, 350384), (61, 321664), (64, 306586), (112, 175192), (122, 160832), (128, 153293), (224, 87596), (244, 80416), (359, 54656), (427, 45952), (448, 43798), (488, 40208), (718, 27328), (854, 22976), (896, 21899), (976, 20104), (1436, 13664), (1708, 11488), (1952, 10052), (2513, 7808), (2872, 6832), (3416, 5744), (3904, 5026)]