18440583

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{409}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 29913600

約数和(自身を除く): 11473017

約数列:

[1, 3, 7, 19, 21, 57, 113, 133, 339, 399, 409, 791, 1227, 2147, 2373, 2863, 6441, 7771, 8589, 15029, 23313, 45087, 46217, 54397, 138651, 163191, 323519, 878123, 970557, 2634369, 6146861, 18440583]

約数ペア:

[(1, 18440583), (3, 6146861), (7, 2634369), (19, 970557), (21, 878123), (57, 323519), (113, 163191), (133, 138651), (339, 54397), (399, 46217), (409, 45087), (791, 23313), (1227, 15029), (2147, 8589), (2373, 7771), (2863, 6441)]