21029520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87623}}^1$

素因数の和:87639

約数の個数: 40

約数和(自身を含む): 65192256

約数和(自身を除く): 44162736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87623, 175246, 262869, 350492, 438115, 525738, 700984, 876230, 1051476, 1314345, 1401968, 1752460, 2102952, 2628690, 3504920, 4205904, 5257380, 7009840, 10514760, 21029520]

約数ペア:

[(1, 21029520), (2, 10514760), (3, 7009840), (4, 5257380), (5, 4205904), (6, 3504920), (8, 2628690), (10, 2102952), (12, 1752460), (15, 1401968), (16, 1314345), (20, 1051476), (24, 876230), (30, 700984), (40, 525738), (48, 438115), (60, 350492), (80, 262869), (120, 175246), (240, 87623)]