20458718

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1283}}^1$

素因数の和:1376

約数の個数: 32

約数和(自身を含む): 37718784

約数和(自身を除く): 17260066

約数列:

[1, 2, 7, 14, 17, 34, 67, 119, 134, 238, 469, 938, 1139, 1283, 2278, 2566, 7973, 8981, 15946, 17962, 21811, 43622, 85961, 152677, 171922, 305354, 601727, 1203454, 1461337, 2922674, 10229359, 20458718]

約数ペア:

[(1, 20458718), (2, 10229359), (7, 2922674), (14, 1461337), (17, 1203454), (34, 601727), (67, 305354), (119, 171922), (134, 152677), (238, 85961), (469, 43622), (938, 21811), (1139, 17962), (1283, 15946), (2278, 8981), (2566, 7973)]