20642226

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26635854

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 66, 74, 79, 107, 111, 158, 214, 222, 237, 321, 407, 474, 642, 814, 869, 1177, 1221, 1738, 2354, 2442, 2607, 2923, 3531, 3959, 5214, 5846, 7062, 7918, 8453, 8769, 11877, 16906, 17538, 23754, 25359, 32153, 43549, 50718, 64306, 87098, 92983, 96459, 130647, 185966, 192918, 261294, 278949, 312761, 557898, 625522, 938283, 1876566, 3440371, 6880742, 10321113, 20642226]

約数ペア:

[(1, 20642226), (2, 10321113), (3, 6880742), (6, 3440371), (11, 1876566), (22, 938283), (33, 625522), (37, 557898), (66, 312761), (74, 278949), (79, 261294), (107, 192918), (111, 185966), (158, 130647), (214, 96459), (222, 92983), (237, 87098), (321, 64306), (407, 50718), (474, 43549), (642, 32153), (814, 25359), (869, 23754), (1177, 17538), (1221, 16906), (1738, 11877), (2354, 8769), (2442, 8453), (2607, 7918), (2923, 7062), (3531, 5846), (3959, 5214)]