203970123

素因数分解:

$3^3\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7243}}^1$

素因数の和:7408

約数の個数: 32

約数和(自身を含む): 347712000

約数和(自身を除く): 143741877

約数列:

[1, 3, 7, 9, 21, 27, 63, 149, 189, 447, 1043, 1341, 3129, 4023, 7243, 9387, 21729, 28161, 50701, 65187, 152103, 195561, 456309, 1079207, 1368927, 3237621, 7554449, 9712863, 22663347, 29138589, 67990041, 203970123]

約数ペア:

[(1, 203970123), (3, 67990041), (7, 29138589), (9, 22663347), (21, 9712863), (27, 7554449), (63, 3237621), (149, 1368927), (189, 1079207), (447, 456309), (1043, 195561), (1341, 152103), (3129, 65187), (4023, 50701), (7243, 28161), (9387, 21729)]