20199774

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1537

約数の個数: 64

約数和(自身を含む): 51494400

約数和(自身を除く): 31294626

約数列:

[1, 2, 3, 6, 7, 14, 17, 19, 21, 34, 38, 42, 51, 57, 102, 114, 119, 133, 238, 266, 323, 357, 399, 646, 714, 798, 969, 1489, 1938, 2261, 2978, 4467, 4522, 6783, 8934, 10423, 13566, 20846, 25313, 28291, 31269, 50626, 56582, 62538, 75939, 84873, 151878, 169746, 177191, 198037, 354382, 396074, 480947, 531573, 594111, 961894, 1063146, 1188222, 1442841, 2885682, 3366629, 6733258, 10099887, 20199774]

約数ペア:

[(1, 20199774), (2, 10099887), (3, 6733258), (6, 3366629), (7, 2885682), (14, 1442841), (17, 1188222), (19, 1063146), (21, 961894), (34, 594111), (38, 531573), (42, 480947), (51, 396074), (57, 354382), (102, 198037), (114, 177191), (119, 169746), (133, 151878), (238, 84873), (266, 75939), (323, 62538), (357, 56582), (399, 50626), (646, 31269), (714, 28291), (798, 25313), (969, 20846), (1489, 13566), (1938, 10423), (2261, 8934), (2978, 6783), (4467, 4522)]