21799844

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{617}}^1$

素因数の和:716

約数の個数: 36

約数和(自身を含む): 42576492

約数和(自身を除く): 20776648

約数列:

[1, 2, 4, 11, 22, 44, 73, 121, 146, 242, 292, 484, 617, 803, 1234, 1606, 2468, 3212, 6787, 8833, 13574, 17666, 27148, 35332, 45041, 74657, 90082, 149314, 180164, 298628, 495451, 990902, 1981804, 5449961, 10899922, 21799844]

約数ペア:

[(1, 21799844), (2, 10899922), (4, 5449961), (11, 1981804), (22, 990902), (44, 495451), (73, 298628), (121, 180164), (146, 149314), (242, 90082), (292, 74657), (484, 45041), (617, 35332), (803, 27148), (1234, 17666), (1606, 13574), (2468, 8833), (3212, 6787)]