21172072

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{3797}}^1$

素因数の和:3861

約数の個数: 32

約数和(自身を含む): 43069320

約数和(自身を除く): 21897248

約数列:

[1, 2, 4, 8, 17, 34, 41, 68, 82, 136, 164, 328, 697, 1394, 2788, 3797, 5576, 7594, 15188, 30376, 64549, 129098, 155677, 258196, 311354, 516392, 622708, 1245416, 2646509, 5293018, 10586036, 21172072]

約数ペア:

[(1, 21172072), (2, 10586036), (4, 5293018), (8, 2646509), (17, 1245416), (34, 622708), (41, 516392), (68, 311354), (82, 258196), (136, 155677), (164, 129098), (328, 64549), (697, 30376), (1394, 15188), (2788, 7594), (3797, 5576)]