398920466

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{214243}}^1$

素因数の和:214278

約数の個数: 24

約数和(自身を含む): 732714480

約数和(自身を除く): 333794014

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 214243, 428486, 1499701, 2999402, 4070617, 8141234, 10497907, 20995814, 28494319, 56988638, 199460233, 398920466]

約数ペア:

[(1, 398920466), (2, 199460233), (7, 56988638), (14, 28494319), (19, 20995814), (38, 10497907), (49, 8141234), (98, 4070617), (133, 2999402), (266, 1499701), (931, 428486), (1862, 214243)]