21448016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{78853}}^1$

素因数の和:78878

約数の個数: 20

約数和(自身を含む): 44000532

約数和(自身を除く): 22552516

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 78853, 157706, 315412, 630824, 1261648, 1340501, 2681002, 5362004, 10724008, 21448016]

約数ペア:

[(1, 21448016), (2, 10724008), (4, 5362004), (8, 2681002), (16, 1340501), (17, 1261648), (34, 630824), (68, 315412), (136, 157706), (272, 78853)]