21508248

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 56388960

約数和(自身を除く): 34880712

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 53, 74, 106, 111, 148, 159, 212, 222, 296, 318, 424, 444, 457, 636, 888, 914, 1272, 1371, 1828, 1961, 2742, 3656, 3922, 5484, 5883, 7844, 10968, 11766, 15688, 16909, 23532, 24221, 33818, 47064, 48442, 50727, 67636, 72663, 96884, 101454, 135272, 145326, 193768, 202908, 290652, 405816, 581304, 896177, 1792354, 2688531, 3584708, 5377062, 7169416, 10754124, 21508248]

約数ペア:

[(1, 21508248), (2, 10754124), (3, 7169416), (4, 5377062), (6, 3584708), (8, 2688531), (12, 1792354), (24, 896177), (37, 581304), (53, 405816), (74, 290652), (106, 202908), (111, 193768), (148, 145326), (159, 135272), (212, 101454), (222, 96884), (296, 72663), (318, 67636), (424, 50727), (444, 48442), (457, 47064), (636, 33818), (888, 24221), (914, 23532), (1272, 16909), (1371, 15688), (1828, 11766), (1961, 10968), (2742, 7844), (3656, 5883), (3922, 5484)]