21007974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{269333}}^1$

素因数の和:269351

約数の個数: 16

約数和(自身を含む): 45248112

約数和(自身を除く): 24240138

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 269333, 538666, 807999, 1615998, 3501329, 7002658, 10503987, 21007974]

約数ペア:

[(1, 21007974), (2, 10503987), (3, 7002658), (6, 3501329), (13, 1615998), (26, 807999), (39, 538666), (78, 269333)]