21574804912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{164663}}^1$

素因数の和:165121

約数の個数: 40

約数和(自身を含む): 44103605760

約数和(自身を除く): 22528800848

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 431, 862, 1724, 3448, 6896, 8189, 16378, 32756, 65512, 131024, 164663, 329326, 658652, 1317304, 2634608, 3128597, 6257194, 12514388, 25028776, 50057552, 70969753, 141939506, 283879012, 567758024, 1135516048, 1348425307, 2696850614, 5393701228, 10787402456, 21574804912]

約数ペア:

[(1, 21574804912), (2, 10787402456), (4, 5393701228), (8, 2696850614), (16, 1348425307), (19, 1135516048), (38, 567758024), (76, 283879012), (152, 141939506), (304, 70969753), (431, 50057552), (862, 25028776), (1724, 12514388), (3448, 6257194), (6896, 3128597), (8189, 2634608), (16378, 1317304), (32756, 658652), (65512, 329326), (131024, 164663)]