21331688

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3371}}^1$

素因数の和:3497

約数の個数: 32

約数和(自身を含む): 46128960

約数和(自身を除く): 24797272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 3371, 6328, 6742, 13484, 23597, 26968, 47194, 94388, 188776, 380923, 761846, 1523692, 2666461, 3047384, 5332922, 10665844, 21331688]

約数ペア:

[(1, 21331688), (2, 10665844), (4, 5332922), (7, 3047384), (8, 2666461), (14, 1523692), (28, 761846), (56, 380923), (113, 188776), (226, 94388), (452, 47194), (791, 26968), (904, 23597), (1582, 13484), (3164, 6742), (3371, 6328)]