638676638

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{211063}}^1$

素因数の和:211171

約数の個数: 16

約数和(自身を含む): 1025771040

約数和(自身を除く): 387094402

約数列:

[1, 2, 17, 34, 89, 178, 1513, 3026, 211063, 422126, 3588071, 7176142, 18784607, 37569214, 319338319, 638676638]

約数ペア:

[(1, 638676638), (2, 319338319), (17, 37569214), (34, 18784607), (89, 7176142), (178, 3588071), (1513, 422126), (3026, 211063)]