20963964

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 57628368

約数和(自身を除く): 36664404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 101, 147, 196, 202, 294, 303, 353, 404, 588, 606, 706, 707, 1059, 1212, 1412, 1414, 2118, 2121, 2471, 2828, 4236, 4242, 4942, 4949, 7413, 8484, 9884, 9898, 14826, 14847, 17297, 19796, 29652, 29694, 34594, 35653, 51891, 59388, 69188, 71306, 103782, 106959, 142612, 207564, 213918, 249571, 427836, 499142, 748713, 998284, 1497426, 1746997, 2994852, 3493994, 5240991, 6987988, 10481982, 20963964]

約数ペア:

[(1, 20963964), (2, 10481982), (3, 6987988), (4, 5240991), (6, 3493994), (7, 2994852), (12, 1746997), (14, 1497426), (21, 998284), (28, 748713), (42, 499142), (49, 427836), (84, 249571), (98, 213918), (101, 207564), (147, 142612), (196, 106959), (202, 103782), (294, 71306), (303, 69188), (353, 59388), (404, 51891), (588, 35653), (606, 34594), (706, 29694), (707, 29652), (1059, 19796), (1212, 17297), (1412, 14847), (1414, 14826), (2118, 9898), (2121, 9884), (2471, 8484), (2828, 7413), (4236, 4949), (4242, 4942)]