64621809

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6793}}^1$

素因数の和:6957

約数の個数: 24

約数和(自身を含む): 107399552

約数和(自身を除く): 42777743

約数列:

[1, 3, 7, 9, 21, 63, 151, 453, 1057, 1359, 3171, 6793, 9513, 20379, 47551, 61137, 142653, 427959, 1025743, 3077229, 7180201, 9231687, 21540603, 64621809]

約数ペア:

[(1, 64621809), (3, 21540603), (7, 9231687), (9, 7180201), (21, 3077229), (63, 1025743), (151, 427959), (453, 142653), (1057, 61137), (1359, 47551), (3171, 20379), (6793, 9513)]