18999123

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{661}}^1$

素因数の和:755

約数の個数: 32

約数和(自身を含む): 30250752

約数和(自身を除く): 11251629

約数列:

[1, 3, 11, 13, 33, 39, 67, 143, 201, 429, 661, 737, 871, 1983, 2211, 2613, 7271, 8593, 9581, 21813, 25779, 28743, 44287, 94523, 132861, 283569, 487157, 575731, 1461471, 1727193, 6333041, 18999123]

約数ペア:

[(1, 18999123), (3, 6333041), (11, 1727193), (13, 1461471), (33, 575731), (39, 487157), (67, 283569), (143, 132861), (201, 94523), (429, 44287), (661, 28743), (737, 25779), (871, 21813), (1983, 9581), (2211, 8593), (2613, 7271)]