21335955

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1741}}^1$

素因数の和:1811

約数の個数: 32

約数和(自身を含む): 36791040

約数和(自身を除く): 15455085

約数列:

[1, 3, 5, 15, 19, 43, 57, 95, 129, 215, 285, 645, 817, 1741, 2451, 4085, 5223, 8705, 12255, 26115, 33079, 74863, 99237, 165395, 224589, 374315, 496185, 1122945, 1422397, 4267191, 7111985, 21335955]

約数ペア:

[(1, 21335955), (3, 7111985), (5, 4267191), (15, 1422397), (19, 1122945), (43, 496185), (57, 374315), (95, 224589), (129, 165395), (215, 99237), (285, 74863), (645, 33079), (817, 26115), (1741, 12255), (2451, 8705), (4085, 5223)]