408069378

素因数分解:

$2^1\times 3^2\times {\mathrm{331}}^1\times {\mathrm{68491}}^1$

素因数の和:68830

約数の個数: 24

約数和(自身を含む): 886834416

約数和(自身を除く): 478765038

約数列:

[1, 2, 3, 6, 9, 18, 331, 662, 993, 1986, 2979, 5958, 68491, 136982, 205473, 410946, 616419, 1232838, 22670521, 45341042, 68011563, 136023126, 204034689, 408069378]

約数ペア:

[(1, 408069378), (2, 204034689), (3, 136023126), (6, 68011563), (9, 45341042), (18, 22670521), (331, 1232838), (662, 616419), (993, 410946), (1986, 205473), (2979, 136982), (5958, 68491)]