393842393

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 490583040

約数和(自身を除く): 96740647

約数列:

[1, 7, 19, 37, 133, 163, 259, 491, 703, 1141, 3097, 3437, 4921, 6031, 9329, 18167, 21679, 42217, 65303, 80033, 114589, 127169, 345173, 560231, 802123, 1520627, 2416211, 2961221, 10644389, 20728547, 56263199, 393842393]

約数ペア:

[(1, 393842393), (7, 56263199), (19, 20728547), (37, 10644389), (133, 2961221), (163, 2416211), (259, 1520627), (491, 802123), (703, 560231), (1141, 345173), (3097, 127169), (3437, 114589), (4921, 80033), (6031, 65303), (9329, 42217), (18167, 21679)]