21849688

素因数分解:

$2^3\times 7^2\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:560

約数の個数: 48

約数和(自身を含む): 48119400

約数和(自身を除く): 26269712

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 139, 196, 278, 392, 401, 556, 802, 973, 1112, 1604, 1946, 2807, 3208, 3892, 5614, 6811, 7784, 11228, 13622, 19649, 22456, 27244, 39298, 54488, 55739, 78596, 111478, 157192, 222956, 390173, 445912, 780346, 1560692, 2731211, 3121384, 5462422, 10924844, 21849688]

約数ペア:

[(1, 21849688), (2, 10924844), (4, 5462422), (7, 3121384), (8, 2731211), (14, 1560692), (28, 780346), (49, 445912), (56, 390173), (98, 222956), (139, 157192), (196, 111478), (278, 78596), (392, 55739), (401, 54488), (556, 39298), (802, 27244), (973, 22456), (1112, 19649), (1604, 13622), (1946, 11228), (2807, 7784), (3208, 6811), (3892, 5614)]