21439864

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{1069}}^1$

素因数の和:1207

約数の個数: 32

約数和(自身を含む): 42372000

約数和(自身を除く): 20932136

約数列:

[1, 2, 4, 8, 23, 46, 92, 109, 184, 218, 436, 872, 1069, 2138, 2507, 4276, 5014, 8552, 10028, 20056, 24587, 49174, 98348, 116521, 196696, 233042, 466084, 932168, 2679983, 5359966, 10719932, 21439864]

約数ペア:

[(1, 21439864), (2, 10719932), (4, 5359966), (8, 2679983), (23, 932168), (46, 466084), (92, 233042), (109, 196696), (184, 116521), (218, 98348), (436, 49174), (872, 24587), (1069, 20056), (2138, 10028), (2507, 8552), (4276, 5014)]