648940497

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3911}}^1$

素因数の和:4045

約数の個数: 32

約数和(自身を含む): 946391040

約数和(自身を除く): 297450543

約数列:

[1, 3, 19, 41, 57, 71, 123, 213, 779, 1349, 2337, 2911, 3911, 4047, 8733, 11733, 55309, 74309, 160351, 165927, 222927, 277681, 481053, 833043, 3046669, 5275939, 9140007, 11384921, 15827817, 34154763, 216313499, 648940497]

約数ペア:

[(1, 648940497), (3, 216313499), (19, 34154763), (41, 15827817), (57, 11384921), (71, 9140007), (123, 5275939), (213, 3046669), (779, 833043), (1349, 481053), (2337, 277681), (2911, 222927), (3911, 165927), (4047, 160351), (8733, 74309), (11733, 55309)]