20867619

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 10153437

約数列:

[1, 3, 17, 31, 51, 67, 93, 197, 201, 527, 591, 1139, 1581, 2077, 3349, 3417, 6107, 6231, 10047, 13199, 18321, 35309, 39597, 103819, 105927, 224383, 311457, 409169, 673149, 1227507, 6955873, 20867619]

約数ペア:

[(1, 20867619), (3, 6955873), (17, 1227507), (31, 673149), (51, 409169), (67, 311457), (93, 224383), (197, 105927), (201, 103819), (527, 39597), (591, 35309), (1139, 18321), (1581, 13199), (2077, 10047), (3349, 6231), (3417, 6107)]