1728396978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{196901}}^1$

素因数の和:196943

約数の個数: 64

約数和(自身を含む): 4536622080

約数和(自身を除く): 2808225102

約数列:

[1, 2, 3, 6, 7, 11, 14, 19, 21, 22, 33, 38, 42, 57, 66, 77, 114, 133, 154, 209, 231, 266, 399, 418, 462, 627, 798, 1254, 1463, 2926, 4389, 8778, 196901, 393802, 590703, 1181406, 1378307, 2165911, 2756614, 3741119, 4134921, 4331822, 6497733, 7482238, 8269842, 11223357, 12995466, 15161377, 22446714, 26187833, 30322754, 41152309, 45484131, 52375666, 78563499, 82304618, 90968262, 123456927, 157126998, 246913854, 288066163, 576132326, 864198489, 1728396978]

約数ペア:

[(1, 1728396978), (2, 864198489), (3, 576132326), (6, 288066163), (7, 246913854), (11, 157126998), (14, 123456927), (19, 90968262), (21, 82304618), (22, 78563499), (33, 52375666), (38, 45484131), (42, 41152309), (57, 30322754), (66, 26187833), (77, 22446714), (114, 15161377), (133, 12995466), (154, 11223357), (209, 8269842), (231, 7482238), (266, 6497733), (399, 4331822), (418, 4134921), (462, 3741119), (627, 2756614), (798, 2165911), (1254, 1378307), (1463, 1181406), (2926, 590703), (4389, 393802), (8778, 196901)]