18679664

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19139}}^1$

素因数の和:19208

約数の個数: 20

約数和(自身を含む): 36787080

約数和(自身を除く): 18107416

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19139, 38278, 76556, 153112, 306224, 1167479, 2334958, 4669916, 9339832, 18679664]

約数ペア:

[(1, 18679664), (2, 9339832), (4, 4669916), (8, 2334958), (16, 1167479), (61, 306224), (122, 153112), (244, 76556), (488, 38278), (976, 19139)]