21638512

素因数分解:

$2^4\times 7^1\times {\mathrm{193201}}^1$

素因数の和:193216

約数の個数: 20

約数和(自身を含む): 47914096

約数和(自身を除く): 26275584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193201, 386402, 772804, 1352407, 1545608, 2704814, 3091216, 5409628, 10819256, 21638512]

約数ペア:

[(1, 21638512), (2, 10819256), (4, 5409628), (7, 3091216), (8, 2704814), (14, 1545608), (16, 1352407), (28, 772804), (56, 386402), (112, 193201)]