19221965

素因数分解:

$5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{1171}}^1$

素因数の和:1257

約数の個数: 24

約数和(自身を含む): 27256032

約数和(自身を除く): 8034067

約数列:

[1, 5, 7, 35, 49, 67, 245, 335, 469, 1171, 2345, 3283, 5855, 8197, 16415, 40985, 57379, 78457, 286895, 392285, 549199, 2745995, 3844393, 19221965]

約数ペア:

[(1, 19221965), (5, 3844393), (7, 2745995), (35, 549199), (49, 392285), (67, 286895), (245, 78457), (335, 57379), (469, 40985), (1171, 16415), (2345, 8197), (3283, 5855)]