71296911

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 128993280

約数和(自身を除く): 57696369

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 67, 127, 133, 147, 171, 201, 381, 399, 441, 469, 603, 889, 931, 1143, 1197, 1273, 1407, 2413, 2667, 2793, 3283, 3819, 4221, 6223, 7239, 8001, 8379, 8509, 8911, 9849, 11457, 16891, 18669, 21717, 25527, 26733, 29547, 50673, 56007, 59563, 62377, 76581, 80199, 118237, 152019, 161671, 178689, 187131, 354711, 416941, 485013, 536067, 561393, 1064133, 1131697, 1250823, 1455039, 3395091, 3752469, 7921879, 10185273, 23765637, 71296911]

約数ペア:

[(1, 71296911), (3, 23765637), (7, 10185273), (9, 7921879), (19, 3752469), (21, 3395091), (49, 1455039), (57, 1250823), (63, 1131697), (67, 1064133), (127, 561393), (133, 536067), (147, 485013), (171, 416941), (201, 354711), (381, 187131), (399, 178689), (441, 161671), (469, 152019), (603, 118237), (889, 80199), (931, 76581), (1143, 62377), (1197, 59563), (1273, 56007), (1407, 50673), (2413, 29547), (2667, 26733), (2793, 25527), (3283, 21717), (3819, 18669), (4221, 16891), (6223, 11457), (7239, 9849), (8001, 8911), (8379, 8509)]