18873978

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 42467328

約数和(自身を除く): 23593350

約数列:

[1, 2, 3, 6, 17, 31, 34, 47, 51, 62, 93, 94, 102, 127, 141, 186, 254, 282, 381, 527, 762, 799, 1054, 1457, 1581, 1598, 2159, 2397, 2914, 3162, 3937, 4318, 4371, 4794, 5969, 6477, 7874, 8742, 11811, 11938, 12954, 17907, 23622, 24769, 35814, 49538, 66929, 74307, 101473, 133858, 148614, 185039, 200787, 202946, 304419, 370078, 401574, 555117, 608838, 1110234, 3145663, 6291326, 9436989, 18873978]

約数ペア:

[(1, 18873978), (2, 9436989), (3, 6291326), (6, 3145663), (17, 1110234), (31, 608838), (34, 555117), (47, 401574), (51, 370078), (62, 304419), (93, 202946), (94, 200787), (102, 185039), (127, 148614), (141, 133858), (186, 101473), (254, 74307), (282, 66929), (381, 49538), (527, 35814), (762, 24769), (799, 23622), (1054, 17907), (1457, 12954), (1581, 11938), (1598, 11811), (2159, 8742), (2397, 7874), (2914, 6477), (3162, 5969), (3937, 4794), (4318, 4371)]