399988057

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{44887}}^1$

素因数の和:44980

約数の個数: 16

約数和(自身を含む): 488381440

約数和(自身を除く): 88393383

約数列:

[1, 7, 19, 67, 133, 469, 1273, 8911, 44887, 314209, 852853, 3007429, 5969971, 21052003, 57141151, 399988057]

約数ペア:

[(1, 399988057), (7, 57141151), (19, 21052003), (67, 5969971), (133, 3007429), (469, 852853), (1273, 314209), (8911, 44887)]