20621115

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1483}}^1$

素因数の和:1600

約数の個数: 32

約数和(自身を含む): 37040640

約数和(自身を除く): 16419525

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1483, 1545, 2781, 4449, 4635, 7415, 13347, 13905, 22245, 40041, 66735, 152749, 200205, 458247, 763745, 1374741, 2291235, 4124223, 6873705, 20621115]

約数ペア:

[(1, 20621115), (3, 6873705), (5, 4124223), (9, 2291235), (15, 1374741), (27, 763745), (45, 458247), (103, 200205), (135, 152749), (309, 66735), (515, 40041), (927, 22245), (1483, 13905), (1545, 13347), (2781, 7415), (4449, 4635)]