21588580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1931}}^1$

素因数の和:1996

約数の個数: 48

約数和(自身を含む): 49984704

約数和(自身を除く): 28396124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 1931, 2236, 2795, 3862, 5590, 7724, 9655, 11180, 19310, 25103, 38620, 50206, 83033, 100412, 125515, 166066, 251030, 332132, 415165, 502060, 830330, 1079429, 1660660, 2158858, 4317716, 5397145, 10794290, 21588580]

約数ペア:

[(1, 21588580), (2, 10794290), (4, 5397145), (5, 4317716), (10, 2158858), (13, 1660660), (20, 1079429), (26, 830330), (43, 502060), (52, 415165), (65, 332132), (86, 251030), (130, 166066), (172, 125515), (215, 100412), (260, 83033), (430, 50206), (559, 38620), (860, 25103), (1118, 19310), (1931, 11180), (2236, 9655), (2795, 7724), (3862, 5590)]