21090330

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2633}}^1$

素因数の和:2735

約数の個数: 48

約数和(自身を含む): 55472040

約数和(自身を除く): 34381710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 89, 90, 178, 267, 445, 534, 801, 890, 1335, 1602, 2633, 2670, 4005, 5266, 7899, 8010, 13165, 15798, 23697, 26330, 39495, 47394, 78990, 118485, 234337, 236970, 468674, 703011, 1171685, 1406022, 2109033, 2343370, 3515055, 4218066, 7030110, 10545165, 21090330]

約数ペア:

[(1, 21090330), (2, 10545165), (3, 7030110), (5, 4218066), (6, 3515055), (9, 2343370), (10, 2109033), (15, 1406022), (18, 1171685), (30, 703011), (45, 468674), (89, 236970), (90, 234337), (178, 118485), (267, 78990), (445, 47394), (534, 39495), (801, 26330), (890, 23697), (1335, 15798), (1602, 13165), (2633, 8010), (2670, 7899), (4005, 5266)]