21808122

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 51819264

約数和(自身を除く): 30011142

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 97, 101, 106, 159, 194, 202, 291, 303, 318, 371, 582, 606, 679, 707, 742, 1113, 1358, 1414, 2037, 2121, 2226, 4074, 4242, 5141, 5353, 9797, 10282, 10706, 15423, 16059, 19594, 29391, 30846, 32118, 35987, 37471, 58782, 68579, 71974, 74942, 107961, 112413, 137158, 205737, 215922, 224826, 411474, 519241, 1038482, 1557723, 3115446, 3634687, 7269374, 10904061, 21808122]

約数ペア:

[(1, 21808122), (2, 10904061), (3, 7269374), (6, 3634687), (7, 3115446), (14, 1557723), (21, 1038482), (42, 519241), (53, 411474), (97, 224826), (101, 215922), (106, 205737), (159, 137158), (194, 112413), (202, 107961), (291, 74942), (303, 71974), (318, 68579), (371, 58782), (582, 37471), (606, 35987), (679, 32118), (707, 30846), (742, 29391), (1113, 19594), (1358, 16059), (1414, 15423), (2037, 10706), (2121, 10282), (2226, 9797), (4074, 5353), (4242, 5141)]