20973562

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:270

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13240838

約数列:

[1, 2, 23, 46, 47, 89, 94, 109, 178, 218, 1081, 2047, 2162, 2507, 4094, 4183, 5014, 5123, 8366, 9701, 10246, 19402, 96209, 117829, 192418, 223123, 235658, 446246, 455947, 911894, 10486781, 20973562]

約数ペア:

[(1, 20973562), (2, 10486781), (23, 911894), (46, 455947), (47, 446246), (89, 235658), (94, 223123), (109, 192418), (178, 117829), (218, 96209), (1081, 19402), (2047, 10246), (2162, 9701), (2507, 8366), (4094, 5123), (4183, 5014)]