221503863

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{587}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 366799104

約数和(自身を除く): 145295241

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 151, 357, 453, 587, 833, 1057, 1761, 2499, 2567, 3171, 4109, 7399, 7701, 9979, 12327, 17969, 22197, 28763, 29937, 53907, 69853, 86289, 88637, 125783, 209559, 265911, 377349, 488971, 620459, 1466913, 1506829, 1861377, 4343213, 4520487, 10547803, 13029639, 31643409, 73834621, 221503863]

約数ペア:

[(1, 221503863), (3, 73834621), (7, 31643409), (17, 13029639), (21, 10547803), (49, 4520487), (51, 4343213), (119, 1861377), (147, 1506829), (151, 1466913), (357, 620459), (453, 488971), (587, 377349), (833, 265911), (1057, 209559), (1761, 125783), (2499, 88637), (2567, 86289), (3171, 69853), (4109, 53907), (7399, 29937), (7701, 28763), (9979, 22197), (12327, 17969)]