20449468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{821}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 38666880

約数和(自身を除く): 18217412

約数列:

[1, 2, 4, 13, 26, 52, 479, 821, 958, 1642, 1916, 3284, 6227, 10673, 12454, 21346, 24908, 42692, 393259, 786518, 1573036, 5112367, 10224734, 20449468]

約数ペア:

[(1, 20449468), (2, 10224734), (4, 5112367), (13, 1573036), (26, 786518), (52, 393259), (479, 42692), (821, 24908), (958, 21346), (1642, 12454), (1916, 10673), (3284, 6227)]