21908824

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:440

約数の個数: 64

約数和(自身を含む): 50400000

約数和(自身を除く): 28491176

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 59, 76, 118, 133, 152, 236, 266, 349, 413, 472, 532, 698, 826, 1064, 1121, 1396, 1652, 2242, 2443, 2792, 3304, 4484, 4886, 6631, 7847, 8968, 9772, 13262, 15694, 19544, 20591, 26524, 31388, 41182, 46417, 53048, 62776, 82364, 92834, 144137, 164728, 185668, 288274, 371336, 391229, 576548, 782458, 1153096, 1564916, 2738603, 3129832, 5477206, 10954412, 21908824]

約数ペア:

[(1, 21908824), (2, 10954412), (4, 5477206), (7, 3129832), (8, 2738603), (14, 1564916), (19, 1153096), (28, 782458), (38, 576548), (56, 391229), (59, 371336), (76, 288274), (118, 185668), (133, 164728), (152, 144137), (236, 92834), (266, 82364), (349, 62776), (413, 53048), (472, 46417), (532, 41182), (698, 31388), (826, 26524), (1064, 20591), (1121, 19544), (1396, 15694), (1652, 13262), (2242, 9772), (2443, 8968), (2792, 7847), (3304, 6631), (4484, 4886)]