20507656

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{673}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 41612760

約数和(自身を除く): 21105104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 293, 586, 673, 1172, 1346, 2344, 2692, 3809, 5384, 7618, 8749, 15236, 17498, 30472, 34996, 69992, 197189, 394378, 788756, 1577512, 2563457, 5126914, 10253828, 20507656]

約数ペア:

[(1, 20507656), (2, 10253828), (4, 5126914), (8, 2563457), (13, 1577512), (26, 788756), (52, 394378), (104, 197189), (293, 69992), (586, 34996), (673, 30472), (1172, 17498), (1346, 15236), (2344, 8749), (2692, 7618), (3809, 5384)]