21969244

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2434

約数の個数: 36

約数和(自身を含む): 44501800

約数和(自身を除く): 22532556

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2299, 2389, 4598, 4778, 9196, 9556, 26279, 45391, 52558, 90782, 105116, 181564, 289069, 499301, 578138, 998602, 1156276, 1997204, 5492311, 10984622, 21969244]

約数ペア:

[(1, 21969244), (2, 10984622), (4, 5492311), (11, 1997204), (19, 1156276), (22, 998602), (38, 578138), (44, 499301), (76, 289069), (121, 181564), (209, 105116), (242, 90782), (418, 52558), (484, 45391), (836, 26279), (2299, 9556), (2389, 9196), (4598, 4778)]