21489714

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:351

約数の個数: 48

約数和(自身を含む): 47990592

約数和(自身を除く): 26500878

約数列:

[1, 2, 3, 6, 9, 18, 67, 103, 134, 173, 201, 206, 309, 346, 402, 519, 603, 618, 927, 1038, 1206, 1557, 1854, 3114, 6901, 11591, 13802, 17819, 20703, 23182, 34773, 35638, 41406, 53457, 62109, 69546, 104319, 106914, 124218, 160371, 208638, 320742, 1193873, 2387746, 3581619, 7163238, 10744857, 21489714]

約数ペア:

[(1, 21489714), (2, 10744857), (3, 7163238), (6, 3581619), (9, 2387746), (18, 1193873), (67, 320742), (103, 208638), (134, 160371), (173, 124218), (201, 106914), (206, 104319), (309, 69546), (346, 62109), (402, 53457), (519, 41406), (603, 35638), (618, 34773), (927, 23182), (1038, 20703), (1206, 17819), (1557, 13802), (1854, 11591), (3114, 6901)]