21742952

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{751}}^1$

素因数の和:822

約数の個数: 64

約数和(自身を含む): 51978240

約数和(自身を除く): 30235288

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 47, 56, 77, 88, 94, 154, 188, 308, 329, 376, 517, 616, 658, 751, 1034, 1316, 1502, 2068, 2632, 3004, 3619, 4136, 5257, 6008, 7238, 8261, 10514, 14476, 16522, 21028, 28952, 33044, 35297, 42056, 57827, 66088, 70594, 115654, 141188, 231308, 247079, 282376, 388267, 462616, 494158, 776534, 988316, 1553068, 1976632, 2717869, 3106136, 5435738, 10871476, 21742952]

約数ペア:

[(1, 21742952), (2, 10871476), (4, 5435738), (7, 3106136), (8, 2717869), (11, 1976632), (14, 1553068), (22, 988316), (28, 776534), (44, 494158), (47, 462616), (56, 388267), (77, 282376), (88, 247079), (94, 231308), (154, 141188), (188, 115654), (308, 70594), (329, 66088), (376, 57827), (517, 42056), (616, 35297), (658, 33044), (751, 28952), (1034, 21028), (1316, 16522), (1502, 14476), (2068, 10514), (2632, 8261), (3004, 7238), (3619, 6008), (4136, 5257)]