15931216

素因数分解:

$2^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1381}}^1$

素因数の和:1499

約数の個数: 40

約数和(自身を含む): 35644544

約数和(自身を除く): 19713328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 103, 112, 206, 412, 721, 824, 1381, 1442, 1648, 2762, 2884, 5524, 5768, 9667, 11048, 11536, 19334, 22096, 38668, 77336, 142243, 154672, 284486, 568972, 995701, 1137944, 1991402, 2275888, 3982804, 7965608, 15931216]

約数ペア:

[(1, 15931216), (2, 7965608), (4, 3982804), (7, 2275888), (8, 1991402), (14, 1137944), (16, 995701), (28, 568972), (56, 284486), (103, 154672), (112, 142243), (206, 77336), (412, 38668), (721, 22096), (824, 19334), (1381, 11536), (1442, 11048), (1648, 9667), (2762, 5768), (2884, 5524)]