21106576

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{353}}^1$

素因数の和:499

約数の個数: 40

約数和(自身を含む): 42535224

約数和(自身を除く): 21428648

約数列:

[1, 2, 4, 8, 16, 37, 74, 101, 148, 202, 296, 353, 404, 592, 706, 808, 1412, 1616, 2824, 3737, 5648, 7474, 13061, 14948, 26122, 29896, 35653, 52244, 59792, 71306, 104488, 142612, 208976, 285224, 570448, 1319161, 2638322, 5276644, 10553288, 21106576]

約数ペア:

[(1, 21106576), (2, 10553288), (4, 5276644), (8, 2638322), (16, 1319161), (37, 570448), (74, 285224), (101, 208976), (148, 142612), (202, 104488), (296, 71306), (353, 59792), (404, 52244), (592, 35653), (706, 29896), (808, 26122), (1412, 14948), (1616, 13061), (2824, 7474), (3737, 5648)]