221123518

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{383}}^1$

素因数の和:589

約数の個数: 64

約数和(自身を含む): 435290112

約数和(自身を除く): 214166594

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 77, 154, 161, 163, 253, 322, 326, 383, 506, 766, 1141, 1771, 1793, 2282, 2681, 3542, 3586, 3749, 4213, 5362, 7498, 8426, 8809, 12551, 17618, 25102, 26243, 29491, 41239, 52486, 58982, 61663, 62429, 82478, 96899, 123326, 124858, 193798, 288673, 437003, 577346, 678293, 686719, 874006, 1356586, 1373438, 1435867, 2871734, 4807033, 9614066, 10051069, 15794537, 20102138, 31589074, 110561759, 221123518]

約数ペア:

[(1, 221123518), (2, 110561759), (7, 31589074), (11, 20102138), (14, 15794537), (22, 10051069), (23, 9614066), (46, 4807033), (77, 2871734), (154, 1435867), (161, 1373438), (163, 1356586), (253, 874006), (322, 686719), (326, 678293), (383, 577346), (506, 437003), (766, 288673), (1141, 193798), (1771, 124858), (1793, 123326), (2282, 96899), (2681, 82478), (3542, 62429), (3586, 61663), (3749, 58982), (4213, 52486), (5362, 41239), (7498, 29491), (8426, 26243), (8809, 25102), (12551, 17618)]