21179892

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^3$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 53464320

約数和(自身を除く): 32284428

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 47, 51, 68, 94, 102, 141, 188, 204, 282, 564, 799, 1598, 2209, 2397, 3196, 4418, 4794, 6627, 8836, 9588, 13254, 26508, 37553, 75106, 103823, 112659, 150212, 207646, 225318, 311469, 415292, 450636, 622938, 1245876, 1764991, 3529982, 5294973, 7059964, 10589946, 21179892]

約数ペア:

[(1, 21179892), (2, 10589946), (3, 7059964), (4, 5294973), (6, 3529982), (12, 1764991), (17, 1245876), (34, 622938), (47, 450636), (51, 415292), (68, 311469), (94, 225318), (102, 207646), (141, 150212), (188, 112659), (204, 103823), (282, 75106), (564, 37553), (799, 26508), (1598, 13254), (2209, 9588), (2397, 8836), (3196, 6627), (4418, 4794)]