155521023

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{953}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 250329600

約数和(自身を除く): 94808577

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 409, 953, 1227, 2859, 2863, 6671, 7771, 8589, 18107, 20013, 23313, 54321, 54397, 126749, 163191, 380247, 389777, 1169331, 2728439, 7405763, 8185317, 22217289, 51840341, 155521023]

約数ペア:

[(1, 155521023), (3, 51840341), (7, 22217289), (19, 8185317), (21, 7405763), (57, 2728439), (133, 1169331), (399, 389777), (409, 380247), (953, 163191), (1227, 126749), (2859, 54397), (2863, 54321), (6671, 23313), (7771, 20013), (8589, 18107)]