21648412

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:406

約数の個数: 36

約数和(自身を含む): 41037304

約数和(自身を除く): 19388892

約数列:

[1, 2, 4, 17, 34, 61, 68, 122, 244, 289, 307, 578, 614, 1037, 1156, 1228, 2074, 4148, 5219, 10438, 17629, 18727, 20876, 35258, 37454, 70516, 74908, 88723, 177446, 318359, 354892, 636718, 1273436, 5412103, 10824206, 21648412]

約数ペア:

[(1, 21648412), (2, 10824206), (4, 5412103), (17, 1273436), (34, 636718), (61, 354892), (68, 318359), (122, 177446), (244, 88723), (289, 74908), (307, 70516), (578, 37454), (614, 35258), (1037, 20876), (1156, 18727), (1228, 17629), (2074, 10438), (4148, 5219)]