21000700018

素因数分解:

$2^1\times {\mathrm{271}}^1\times {\mathrm{8597}}^1\times {\mathrm{4507}}^1$

素因数の和:13377

約数の個数: 16

約数和(自身を含む): 31627983744

約数和(自身を除く): 10627283726

約数列:

[1, 2, 271, 542, 4507, 8597, 9014, 17194, 1221397, 2329787, 2442794, 4659574, 38746679, 77493358, 10500350009, 21000700018]

約数ペア:

[(1, 21000700018), (2, 10500350009), (271, 77493358), (542, 38746679), (4507, 4659574), (8597, 2442794), (9014, 2329787), (17194, 1221397)]