681428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{911}}^1$

素因数の和:943

約数の個数: 24

約数和(自身を含む): 1378944

約数和(自身を除く): 697516

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 748, 911, 1822, 3644, 10021, 15487, 20042, 30974, 40084, 61948, 170357, 340714, 681428]

約数ペア:

[(1, 681428), (2, 340714), (4, 170357), (11, 61948), (17, 40084), (22, 30974), (34, 20042), (44, 15487), (68, 10021), (187, 3644), (374, 1822), (748, 911)]