20970334

素因数分解:

$2^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{397}}^1$

素因数の和:438

約数の個数: 40

約数和(自身を含む): 40132728

約数和(自身を除く): 19162394

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 343, 397, 539, 686, 794, 1078, 2401, 2779, 3773, 4367, 4802, 5558, 7546, 8734, 19453, 26411, 30569, 38906, 52822, 61138, 136171, 213983, 272342, 427966, 953197, 1497881, 1906394, 2995762, 10485167, 20970334]

約数ペア:

[(1, 20970334), (2, 10485167), (7, 2995762), (11, 1906394), (14, 1497881), (22, 953197), (49, 427966), (77, 272342), (98, 213983), (154, 136171), (343, 61138), (397, 52822), (539, 38906), (686, 30569), (794, 26411), (1078, 19453), (2401, 8734), (2779, 7546), (3773, 5558), (4367, 4802)]