21253980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32203}}^1$

素因数の和:32226

約数の個数: 48

約数和(自身を含む): 64923264

約数和(自身を除く): 43669284

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32203, 64406, 96609, 128812, 161015, 193218, 322030, 354233, 386436, 483045, 644060, 708466, 966090, 1062699, 1416932, 1771165, 1932180, 2125398, 3542330, 4250796, 5313495, 7084660, 10626990, 21253980]

約数ペア:

[(1, 21253980), (2, 10626990), (3, 7084660), (4, 5313495), (5, 4250796), (6, 3542330), (10, 2125398), (11, 1932180), (12, 1771165), (15, 1416932), (20, 1062699), (22, 966090), (30, 708466), (33, 644060), (44, 483045), (55, 386436), (60, 354233), (66, 322030), (110, 193218), (132, 161015), (165, 128812), (220, 96609), (330, 64406), (660, 32203)]