21426944

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1087}}^1$

素因数の和:1121

約数の個数: 72

約数和(自身を含む): 53372928

約数和(自身を除く): 31945984

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 128, 154, 176, 224, 256, 308, 352, 448, 616, 704, 896, 1087, 1232, 1408, 1792, 2174, 2464, 2816, 4348, 4928, 7609, 8696, 9856, 11957, 15218, 17392, 19712, 23914, 30436, 34784, 47828, 60872, 69568, 83699, 95656, 121744, 139136, 167398, 191312, 243488, 278272, 334796, 382624, 486976, 669592, 765248, 973952, 1339184, 1530496, 1947904, 2678368, 3060992, 5356736, 10713472, 21426944]

約数ペア:

[(1, 21426944), (2, 10713472), (4, 5356736), (7, 3060992), (8, 2678368), (11, 1947904), (14, 1530496), (16, 1339184), (22, 973952), (28, 765248), (32, 669592), (44, 486976), (56, 382624), (64, 334796), (77, 278272), (88, 243488), (112, 191312), (128, 167398), (154, 139136), (176, 121744), (224, 95656), (256, 83699), (308, 69568), (352, 60872), (448, 47828), (616, 34784), (704, 30436), (896, 23914), (1087, 19712), (1232, 17392), (1408, 15218), (1792, 11957), (2174, 9856), (2464, 8696), (2816, 7609), (4348, 4928)]