21976556

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 23746324

約数列:

[1, 2, 4, 7, 14, 28, 53, 59, 106, 118, 212, 236, 251, 371, 413, 502, 742, 826, 1004, 1484, 1652, 1757, 3127, 3514, 6254, 7028, 12508, 13303, 14809, 21889, 26606, 29618, 43778, 53212, 59236, 87556, 93121, 103663, 186242, 207326, 372484, 414652, 784877, 1569754, 3139508, 5494139, 10988278, 21976556]

約数ペア:

[(1, 21976556), (2, 10988278), (4, 5494139), (7, 3139508), (14, 1569754), (28, 784877), (53, 414652), (59, 372484), (106, 207326), (118, 186242), (212, 103663), (236, 93121), (251, 87556), (371, 59236), (413, 53212), (502, 43778), (742, 29618), (826, 26606), (1004, 21889), (1484, 14809), (1652, 13303), (1757, 12508), (3127, 7028), (3514, 6254)]