21486830

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{907}}^1$

素因数の和:1040

約数の個数: 32

約数和(自身を含む): 40794624

約数和(自身を除く): 19307794

約数列:

[1, 2, 5, 10, 23, 46, 103, 115, 206, 230, 515, 907, 1030, 1814, 2369, 4535, 4738, 9070, 11845, 20861, 23690, 41722, 93421, 104305, 186842, 208610, 467105, 934210, 2148683, 4297366, 10743415, 21486830]

約数ペア:

[(1, 21486830), (2, 10743415), (5, 4297366), (10, 2148683), (23, 934210), (46, 467105), (103, 208610), (115, 186842), (206, 104305), (230, 93421), (515, 41722), (907, 23690), (1030, 20861), (1814, 11845), (2369, 9070), (4535, 4738)]