20105204091

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{797}}^1\times {\mathrm{17929}}^1$

素因数の和:18803

約数の個数: 32

約数和(自身を含む): 31134512640

約数和(自身を除く): 11029308549

約数列:

[1, 3, 7, 21, 67, 201, 469, 797, 1407, 2391, 5579, 16737, 17929, 53399, 53787, 125503, 160197, 373793, 376509, 1121379, 1201243, 3603729, 8408701, 14289413, 25226103, 42868239, 100025891, 300077673, 957390671, 2872172013, 6701734697, 20105204091]

約数ペア:

[(1, 20105204091), (3, 6701734697), (7, 2872172013), (21, 957390671), (67, 300077673), (201, 100025891), (469, 42868239), (797, 25226103), (1407, 14289413), (2391, 8408701), (5579, 3603729), (16737, 1201243), (17929, 1121379), (53399, 376509), (53787, 373793), (125503, 160197)]