205565913

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:582

約数の個数: 48

約数和(自身を含む): 348192000

約数和(自身を除く): 142626087

約数列:

[1, 3, 7, 9, 21, 61, 63, 149, 183, 359, 427, 447, 549, 1043, 1077, 1281, 1341, 2513, 3129, 3231, 3843, 7539, 9089, 9387, 21899, 22617, 27267, 53491, 63623, 65697, 81801, 153293, 160473, 190869, 197091, 374437, 459879, 481419, 572607, 1123311, 1379637, 3262951, 3369933, 9788853, 22840657, 29366559, 68521971, 205565913]

約数ペア:

[(1, 205565913), (3, 68521971), (7, 29366559), (9, 22840657), (21, 9788853), (61, 3369933), (63, 3262951), (149, 1379637), (183, 1123311), (359, 572607), (427, 481419), (447, 459879), (549, 374437), (1043, 197091), (1077, 190869), (1281, 160473), (1341, 153293), (2513, 81801), (3129, 65697), (3231, 63623), (3843, 53491), (7539, 27267), (9089, 22617), (9387, 21899)]