20894104

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{317}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 28561256

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 107, 154, 214, 308, 317, 428, 616, 634, 749, 856, 1177, 1268, 1498, 2219, 2354, 2536, 2996, 3487, 4438, 4708, 5992, 6974, 8239, 8876, 9416, 13948, 16478, 17752, 24409, 27896, 32956, 33919, 48818, 65912, 67838, 97636, 135676, 195272, 237433, 271352, 373109, 474866, 746218, 949732, 1492436, 1899464, 2611763, 2984872, 5223526, 10447052, 20894104]

約数ペア:

[(1, 20894104), (2, 10447052), (4, 5223526), (7, 2984872), (8, 2611763), (11, 1899464), (14, 1492436), (22, 949732), (28, 746218), (44, 474866), (56, 373109), (77, 271352), (88, 237433), (107, 195272), (154, 135676), (214, 97636), (308, 67838), (317, 65912), (428, 48818), (616, 33919), (634, 32956), (749, 27896), (856, 24409), (1177, 17752), (1268, 16478), (1498, 13948), (2219, 9416), (2354, 8876), (2536, 8239), (2996, 6974), (3487, 5992), (4438, 4708)]