18915306

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{223}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 38750208

約数和(自身を除く): 19834902

約数列:

[1, 2, 3, 6, 67, 134, 201, 211, 223, 402, 422, 446, 633, 669, 1266, 1338, 14137, 14941, 28274, 29882, 42411, 44823, 47053, 84822, 89646, 94106, 141159, 282318, 3152551, 6305102, 9457653, 18915306]

約数ペア:

[(1, 18915306), (2, 9457653), (3, 6305102), (6, 3152551), (67, 282318), (134, 141159), (201, 94106), (211, 89646), (223, 84822), (402, 47053), (422, 44823), (446, 42411), (633, 29882), (669, 28274), (1266, 14941), (1338, 14137)]