21977838

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 52488000

約数和(自身を除く): 30510162

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 89, 102, 153, 178, 267, 269, 306, 459, 534, 538, 801, 807, 918, 1513, 1602, 1614, 2403, 2421, 3026, 4539, 4573, 4806, 4842, 7263, 9078, 9146, 13617, 13719, 14526, 23941, 27234, 27438, 40851, 41157, 47882, 71823, 81702, 82314, 123471, 143646, 215469, 246942, 406997, 430938, 646407, 813994, 1220991, 1292814, 2441982, 3662973, 7325946, 10988919, 21977838]

約数ペア:

[(1, 21977838), (2, 10988919), (3, 7325946), (6, 3662973), (9, 2441982), (17, 1292814), (18, 1220991), (27, 813994), (34, 646407), (51, 430938), (54, 406997), (89, 246942), (102, 215469), (153, 143646), (178, 123471), (267, 82314), (269, 81702), (306, 71823), (459, 47882), (534, 41157), (538, 40851), (801, 27438), (807, 27234), (918, 23941), (1513, 14526), (1602, 13719), (1614, 13617), (2403, 9146), (2421, 9078), (3026, 7263), (4539, 4842), (4573, 4806)]