21701085

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 42024960

約数和(自身を除く): 20323875

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 59, 93, 105, 113, 155, 177, 217, 295, 339, 413, 465, 565, 651, 791, 885, 1085, 1239, 1695, 1829, 2065, 2373, 3255, 3503, 3955, 5487, 6195, 6667, 9145, 10509, 11865, 12803, 17515, 20001, 24521, 27435, 33335, 38409, 46669, 52545, 64015, 73563, 100005, 122605, 140007, 192045, 206677, 233345, 367815, 620031, 700035, 1033385, 1446739, 3100155, 4340217, 7233695, 21701085]

約数ペア:

[(1, 21701085), (3, 7233695), (5, 4340217), (7, 3100155), (15, 1446739), (21, 1033385), (31, 700035), (35, 620031), (59, 367815), (93, 233345), (105, 206677), (113, 192045), (155, 140007), (177, 122605), (217, 100005), (295, 73563), (339, 64015), (413, 52545), (465, 46669), (565, 38409), (651, 33335), (791, 27435), (885, 24521), (1085, 20001), (1239, 17515), (1695, 12803), (1829, 11865), (2065, 10509), (2373, 9145), (3255, 6667), (3503, 6195), (3955, 5487)]