20648914

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 40061952

約数和(自身を除く): 19413038

約数列:

[1, 2, 11, 13, 17, 22, 26, 31, 34, 62, 137, 143, 187, 221, 274, 286, 341, 374, 403, 442, 527, 682, 806, 1054, 1507, 1781, 2329, 2431, 3014, 3562, 4247, 4433, 4658, 4862, 5797, 6851, 8494, 8866, 11594, 13702, 19591, 25619, 30277, 39182, 46717, 51238, 55211, 60554, 72199, 75361, 93434, 110422, 144398, 150722, 333047, 607321, 666094, 794189, 938587, 1214642, 1588378, 1877174, 10324457, 20648914]

約数ペア:

[(1, 20648914), (2, 10324457), (11, 1877174), (13, 1588378), (17, 1214642), (22, 938587), (26, 794189), (31, 666094), (34, 607321), (62, 333047), (137, 150722), (143, 144398), (187, 110422), (221, 93434), (274, 75361), (286, 72199), (341, 60554), (374, 55211), (403, 51238), (442, 46717), (527, 39182), (682, 30277), (806, 25619), (1054, 19591), (1507, 13702), (1781, 11594), (2329, 8866), (2431, 8494), (3014, 6851), (3562, 5797), (4247, 4862), (4433, 4658)]