21141812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20226508

約数列:

[1, 2, 4, 17, 29, 34, 58, 68, 71, 116, 142, 151, 284, 302, 493, 604, 986, 1207, 1972, 2059, 2414, 2567, 4118, 4379, 4828, 5134, 8236, 8758, 10268, 10721, 17516, 21442, 35003, 42884, 70006, 74443, 140012, 148886, 182257, 297772, 310909, 364514, 621818, 729028, 1243636, 5285453, 10570906, 21141812]

約数ペア:

[(1, 21141812), (2, 10570906), (4, 5285453), (17, 1243636), (29, 729028), (34, 621818), (58, 364514), (68, 310909), (71, 297772), (116, 182257), (142, 148886), (151, 140012), (284, 74443), (302, 70006), (493, 42884), (604, 35003), (986, 21442), (1207, 17516), (1972, 10721), (2059, 10268), (2414, 8758), (2567, 8236), (4118, 5134), (4379, 4828)]