28373289

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 21393111

約数列:

[1, 3, 7, 17, 19, 21, 47, 51, 57, 89, 119, 133, 141, 267, 323, 329, 357, 399, 623, 799, 893, 969, 987, 1513, 1691, 1869, 2261, 2397, 2679, 4183, 4539, 5073, 5593, 6251, 6783, 10591, 11837, 12549, 15181, 16779, 18753, 28747, 29281, 31773, 35511, 45543, 71111, 79477, 86241, 87843, 106267, 201229, 213333, 238431, 318801, 497777, 556339, 603687, 1351109, 1493331, 1669017, 4053327, 9457763, 28373289]

約数ペア:

[(1, 28373289), (3, 9457763), (7, 4053327), (17, 1669017), (19, 1493331), (21, 1351109), (47, 603687), (51, 556339), (57, 497777), (89, 318801), (119, 238431), (133, 213333), (141, 201229), (267, 106267), (323, 87843), (329, 86241), (357, 79477), (399, 71111), (623, 45543), (799, 35511), (893, 31773), (969, 29281), (987, 28747), (1513, 18753), (1691, 16779), (1869, 15181), (2261, 12549), (2397, 11837), (2679, 10591), (4183, 6783), (4539, 6251), (5073, 5593)]