287381661

素因数分解:

$3^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{223}}^1\times {\mathrm{563}}^1$

素因数の和:905

約数の個数: 32

約数和(自身を含む): 444702720

約数和(自身を除く): 157321059

約数列:

[1, 3, 7, 21, 109, 223, 327, 563, 669, 763, 1561, 1689, 2289, 3941, 4683, 11823, 24307, 61367, 72921, 125549, 170149, 184101, 376647, 429569, 510447, 878843, 1288707, 2636529, 13684841, 41054523, 95793887, 287381661]

約数ペア:

[(1, 287381661), (3, 95793887), (7, 41054523), (21, 13684841), (109, 2636529), (223, 1288707), (327, 878843), (563, 510447), (669, 429569), (763, 376647), (1561, 184101), (1689, 170149), (2289, 125549), (3941, 72921), (4683, 61367), (11823, 24307)]