51516405

素因数分解:

$3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{971}}^1$

素因数の和:1119

約数の個数: 40

約数和(自身を含む): 93148704

約数和(自身を除く): 41632299

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 393, 405, 655, 971, 1179, 1965, 2913, 3537, 4855, 5895, 8739, 10611, 14565, 17685, 26217, 43695, 53055, 78651, 127201, 131085, 381603, 393255, 636005, 1144809, 1908015, 3434427, 5724045, 10303281, 17172135, 51516405]

約数ペア:

[(1, 51516405), (3, 17172135), (5, 10303281), (9, 5724045), (15, 3434427), (27, 1908015), (45, 1144809), (81, 636005), (131, 393255), (135, 381603), (393, 131085), (405, 127201), (655, 78651), (971, 53055), (1179, 43695), (1965, 26217), (2913, 17685), (3537, 14565), (4855, 10611), (5895, 8739)]