221620503

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4903}}^1$

素因数の和:4999

約数の個数: 32

約数和(自身を含む): 340533760

約数和(自身を除く): 118913257

約数列:

[1, 3, 13, 19, 39, 57, 61, 183, 247, 741, 793, 1159, 2379, 3477, 4903, 14709, 15067, 45201, 63739, 93157, 191217, 279471, 299083, 897249, 1211041, 3633123, 3888079, 5682577, 11664237, 17047731, 73873501, 221620503]

約数ペア:

[(1, 221620503), (3, 73873501), (13, 17047731), (19, 11664237), (39, 5682577), (57, 3888079), (61, 3633123), (183, 1211041), (247, 897249), (741, 299083), (793, 279471), (1159, 191217), (2379, 93157), (3477, 63739), (4903, 45201), (14709, 15067)]