661948942

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{285569}}^1$

素因数の和:285651

約数の個数: 16

約数和(自身を含む): 1062320400

約数和(自身を除く): 400371458

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 285569, 571138, 5425811, 10851622, 17419709, 34839418, 330974471, 661948942]

約数ペア:

[(1, 661948942), (2, 330974471), (19, 34839418), (38, 17419709), (61, 10851622), (122, 5425811), (1159, 571138), (2318, 285569)]