19968298

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 15801302

約数列:

[1, 2, 7, 14, 29, 58, 137, 203, 274, 359, 406, 718, 959, 1918, 2513, 3973, 5026, 7946, 10411, 20822, 27811, 49183, 55622, 72877, 98366, 145754, 344281, 688562, 1426307, 2852614, 9984149, 19968298]

約数ペア:

[(1, 19968298), (2, 9984149), (7, 2852614), (14, 1426307), (29, 688562), (58, 344281), (137, 145754), (203, 98366), (274, 72877), (359, 55622), (406, 49183), (718, 27811), (959, 20822), (1918, 10411), (2513, 7946), (3973, 5026)]