21330045

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1051}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 41356224

約数和(自身を除く): 20026179

約数列:

[1, 3, 5, 9, 11, 15, 33, 41, 45, 55, 99, 123, 165, 205, 369, 451, 495, 615, 1051, 1353, 1845, 2255, 3153, 4059, 5255, 6765, 9459, 11561, 15765, 20295, 34683, 43091, 47295, 57805, 104049, 129273, 173415, 215455, 387819, 474001, 520245, 646365, 1422003, 1939095, 2370005, 4266009, 7110015, 21330045]

約数ペア:

[(1, 21330045), (3, 7110015), (5, 4266009), (9, 2370005), (11, 1939095), (15, 1422003), (33, 646365), (41, 520245), (45, 474001), (55, 387819), (99, 215455), (123, 173415), (165, 129273), (205, 104049), (369, 57805), (451, 47295), (495, 43091), (615, 34683), (1051, 20295), (1353, 15765), (1845, 11561), (2255, 9459), (3153, 6765), (4059, 5255)]