21699664

素因数分解:

$2^4\times 7^1\times {\mathrm{313}}^1\times {\mathrm{619}}^1$

素因数の和:947

約数の個数: 40

約数和(自身を含む): 48280640

約数和(自身を除く): 26580976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 313, 619, 626, 1238, 1252, 2191, 2476, 2504, 4333, 4382, 4952, 5008, 8666, 8764, 9904, 17332, 17528, 34664, 35056, 69328, 193747, 387494, 774988, 1356229, 1549976, 2712458, 3099952, 5424916, 10849832, 21699664]

約数ペア:

[(1, 21699664), (2, 10849832), (4, 5424916), (7, 3099952), (8, 2712458), (14, 1549976), (16, 1356229), (28, 774988), (56, 387494), (112, 193747), (313, 69328), (619, 35056), (626, 34664), (1238, 17528), (1252, 17332), (2191, 9904), (2476, 8764), (2504, 8666), (4333, 5008), (4382, 4952)]