21529130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{829}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 45985320

約数和(自身を除く): 24456190

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 245, 265, 371, 490, 530, 742, 829, 1658, 1855, 2597, 3710, 4145, 5194, 5803, 8290, 11606, 12985, 25970, 29015, 40621, 43937, 58030, 81242, 87874, 203105, 219685, 307559, 406210, 439370, 615118, 1537795, 2152913, 3075590, 4305826, 10764565, 21529130]

約数ペア:

[(1, 21529130), (2, 10764565), (5, 4305826), (7, 3075590), (10, 2152913), (14, 1537795), (35, 615118), (49, 439370), (53, 406210), (70, 307559), (98, 219685), (106, 203105), (245, 87874), (265, 81242), (371, 58030), (490, 43937), (530, 40621), (742, 29015), (829, 25970), (1658, 12985), (1855, 11606), (2597, 8290), (3710, 5803), (4145, 5194)]