208418511

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 332259840

約数和(自身を除く): 123841329

約数列:

[1, 3, 7, 21, 49, 79, 131, 137, 147, 237, 393, 411, 553, 917, 959, 1659, 2751, 2877, 3871, 6419, 6713, 10349, 10823, 11613, 17947, 19257, 20139, 31047, 32469, 53841, 72443, 75761, 125629, 217329, 227283, 376887, 507101, 530327, 879403, 1417813, 1521303, 1590981, 2638209, 4253439, 9924691, 29774073, 69472837, 208418511]

約数ペア:

[(1, 208418511), (3, 69472837), (7, 29774073), (21, 9924691), (49, 4253439), (79, 2638209), (131, 1590981), (137, 1521303), (147, 1417813), (237, 879403), (393, 530327), (411, 507101), (553, 376887), (917, 227283), (959, 217329), (1659, 125629), (2751, 75761), (2877, 72443), (3871, 53841), (6419, 32469), (6713, 31047), (10349, 20139), (10823, 19257), (11613, 17947)]