21006274480

素因数分解:

$2^4\times 5^1\times {\mathrm{7691}}^1\times {\mathrm{34141}}^1$

素因数の和:41845

約数の個数: 40

約数和(自身を含む): 48847369104

約数和(自身を除く): 27841094624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 7691, 15382, 30764, 34141, 38455, 61528, 68282, 76910, 123056, 136564, 153820, 170705, 273128, 307640, 341410, 546256, 615280, 682820, 1365640, 2731280, 262578431, 525156862, 1050313724, 1312892155, 2100627448, 2625784310, 4201254896, 5251568620, 10503137240, 21006274480]

約数ペア:

[(1, 21006274480), (2, 10503137240), (4, 5251568620), (5, 4201254896), (8, 2625784310), (10, 2100627448), (16, 1312892155), (20, 1050313724), (40, 525156862), (80, 262578431), (7691, 2731280), (15382, 1365640), (30764, 682820), (34141, 615280), (38455, 546256), (61528, 341410), (68282, 307640), (76910, 273128), (123056, 170705), (136564, 153820)]