21010260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6607}}^1$

素因数の和:6672

約数の個数: 48

約数和(自身を含む): 59947776

約数和(自身を除く): 38937516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6607, 13214, 19821, 26428, 33035, 39642, 66070, 79284, 99105, 132140, 198210, 350171, 396420, 700342, 1050513, 1400684, 1750855, 2101026, 3501710, 4202052, 5252565, 7003420, 10505130, 21010260]

約数ペア:

[(1, 21010260), (2, 10505130), (3, 7003420), (4, 5252565), (5, 4202052), (6, 3501710), (10, 2101026), (12, 1750855), (15, 1400684), (20, 1050513), (30, 700342), (53, 396420), (60, 350171), (106, 198210), (159, 132140), (212, 99105), (265, 79284), (318, 66070), (530, 39642), (636, 33035), (795, 26428), (1060, 19821), (1590, 13214), (3180, 6607)]