21230340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1069}}^1$

素因数の和:1412

約数の個数: 48

約数和(自身を含む): 59680320

約数和(自身を除く): 38449980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 331, 662, 993, 1069, 1324, 1655, 1986, 2138, 3207, 3310, 3972, 4276, 4965, 5345, 6414, 6620, 9930, 10690, 12828, 16035, 19860, 21380, 32070, 64140, 353839, 707678, 1061517, 1415356, 1769195, 2123034, 3538390, 4246068, 5307585, 7076780, 10615170, 21230340]

約数ペア:

[(1, 21230340), (2, 10615170), (3, 7076780), (4, 5307585), (5, 4246068), (6, 3538390), (10, 2123034), (12, 1769195), (15, 1415356), (20, 1061517), (30, 707678), (60, 353839), (331, 64140), (662, 32070), (993, 21380), (1069, 19860), (1324, 16035), (1655, 12828), (1986, 10690), (2138, 9930), (3207, 6620), (3310, 6414), (3972, 5345), (4276, 4965)]