19980414433

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1\times {\mathrm{3109}}^1$

素因数の和:3541

約数の個数: 32

約数和(自身を含む): 24075878400

約数和(自身を除く): 4095463967

約数列:

[1, 7, 23, 161, 179, 223, 1253, 1561, 3109, 4117, 5129, 21763, 28819, 35903, 39917, 71507, 279419, 500549, 556511, 693307, 918091, 3895577, 4853149, 6426637, 12799753, 15946061, 89598271, 111622427, 124101953, 868713671, 2854344919, 19980414433]

約数ペア:

[(1, 19980414433), (7, 2854344919), (23, 868713671), (161, 124101953), (179, 111622427), (223, 89598271), (1253, 15946061), (1561, 12799753), (3109, 6426637), (4117, 4853149), (5129, 3895577), (21763, 918091), (28819, 693307), (35903, 556511), (39917, 500549), (71507, 279419)]