21913380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2297}}^1$

素因数の和:2365

約数の個数: 72

約数和(自身を含む): 67754232

約数和(自身を除く): 45840852

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2297, 2385, 3180, 4594, 4770, 6891, 9188, 9540, 11485, 13782, 20673, 22970, 27564, 34455, 41346, 45940, 68910, 82692, 103365, 121741, 137820, 206730, 243482, 365223, 413460, 486964, 608705, 730446, 1095669, 1217410, 1460892, 1826115, 2191338, 2434820, 3652230, 4382676, 5478345, 7304460, 10956690, 21913380]

約数ペア:

[(1, 21913380), (2, 10956690), (3, 7304460), (4, 5478345), (5, 4382676), (6, 3652230), (9, 2434820), (10, 2191338), (12, 1826115), (15, 1460892), (18, 1217410), (20, 1095669), (30, 730446), (36, 608705), (45, 486964), (53, 413460), (60, 365223), (90, 243482), (106, 206730), (159, 137820), (180, 121741), (212, 103365), (265, 82692), (318, 68910), (477, 45940), (530, 41346), (636, 34455), (795, 27564), (954, 22970), (1060, 20673), (1590, 13782), (1908, 11485), (2297, 9540), (2385, 9188), (3180, 6891), (4594, 4770)]