21898524

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 55469568

約数和(自身を除く): 33571044

約数列:

[1, 2, 3, 4, 6, 12, 31, 37, 43, 62, 74, 86, 93, 111, 124, 129, 148, 172, 186, 222, 258, 372, 444, 516, 1147, 1333, 1369, 1591, 2294, 2666, 2738, 3182, 3441, 3999, 4107, 4588, 4773, 5332, 5476, 6364, 6882, 7998, 8214, 9546, 13764, 15996, 16428, 19092, 42439, 49321, 58867, 84878, 98642, 117734, 127317, 147963, 169756, 176601, 197284, 235468, 254634, 295926, 353202, 509268, 591852, 706404, 1824877, 3649754, 5474631, 7299508, 10949262, 21898524]

約数ペア:

[(1, 21898524), (2, 10949262), (3, 7299508), (4, 5474631), (6, 3649754), (12, 1824877), (31, 706404), (37, 591852), (43, 509268), (62, 353202), (74, 295926), (86, 254634), (93, 235468), (111, 197284), (124, 176601), (129, 169756), (148, 147963), (172, 127317), (186, 117734), (222, 98642), (258, 84878), (372, 58867), (444, 49321), (516, 42439), (1147, 19092), (1333, 16428), (1369, 15996), (1591, 13764), (2294, 9546), (2666, 8214), (2738, 7998), (3182, 6882), (3441, 6364), (3999, 5476), (4107, 5332), (4588, 4773)]