21783652

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 22729628

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 71, 76, 142, 209, 284, 367, 418, 734, 781, 836, 1349, 1468, 1562, 2698, 3124, 4037, 5396, 6973, 8074, 13946, 14839, 16148, 26057, 27892, 29678, 52114, 59356, 76703, 104228, 153406, 286627, 306812, 495083, 573254, 990166, 1146508, 1980332, 5445913, 10891826, 21783652]

約数ペア:

[(1, 21783652), (2, 10891826), (4, 5445913), (11, 1980332), (19, 1146508), (22, 990166), (38, 573254), (44, 495083), (71, 306812), (76, 286627), (142, 153406), (209, 104228), (284, 76703), (367, 59356), (418, 52114), (734, 29678), (781, 27892), (836, 26057), (1349, 16148), (1468, 14839), (1562, 13946), (2698, 8074), (3124, 6973), (4037, 5396)]