21912471

素因数分解:

$3^3\times 7^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:716

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 15412329

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 269, 431, 807, 1293, 1883, 2421, 3017, 3879, 5649, 7263, 9051, 11637, 16947, 27153, 50841, 81459, 115939, 347817, 811573, 1043451, 2434719, 3130353, 7304157, 21912471]

約数ペア:

[(1, 21912471), (3, 7304157), (7, 3130353), (9, 2434719), (21, 1043451), (27, 811573), (63, 347817), (189, 115939), (269, 81459), (431, 50841), (807, 27153), (1293, 16947), (1883, 11637), (2421, 9051), (3017, 7263), (3879, 5649)]