221493357

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 364745472

約数和(自身を除く): 143252115

約数列:

[1, 3, 9, 17, 31, 41, 51, 67, 93, 123, 153, 201, 279, 289, 369, 527, 603, 697, 867, 1139, 1271, 1581, 2077, 2091, 2601, 2747, 3417, 3813, 4743, 6231, 6273, 8241, 8959, 10251, 11439, 11849, 18693, 19363, 21607, 24723, 26877, 35309, 35547, 46699, 58089, 64821, 80631, 85157, 105927, 106641, 140097, 174267, 194463, 255471, 317781, 367319, 420291, 600253, 766413, 793883, 1101957, 1447669, 1800759, 2381649, 3305871, 4343007, 5402277, 7144947, 13029021, 24610373, 73831119, 221493357]

約数ペア:

[(1, 221493357), (3, 73831119), (9, 24610373), (17, 13029021), (31, 7144947), (41, 5402277), (51, 4343007), (67, 3305871), (93, 2381649), (123, 1800759), (153, 1447669), (201, 1101957), (279, 793883), (289, 766413), (369, 600253), (527, 420291), (603, 367319), (697, 317781), (867, 255471), (1139, 194463), (1271, 174267), (1581, 140097), (2077, 106641), (2091, 105927), (2601, 85157), (2747, 80631), (3417, 64821), (3813, 58089), (4743, 46699), (6231, 35547), (6273, 35309), (8241, 26877), (8959, 24723), (10251, 21607), (11439, 19363), (11849, 18693)]