21170116

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 42819840

約数和(自身を除く): 21649724

約数列:

[1, 2, 4, 11, 22, 29, 44, 47, 58, 94, 116, 188, 319, 353, 517, 638, 706, 1034, 1276, 1363, 1412, 2068, 2726, 3883, 5452, 7766, 10237, 14993, 15532, 16591, 20474, 29986, 33182, 40948, 59972, 66364, 112607, 182501, 225214, 365002, 450428, 481139, 730004, 962278, 1924556, 5292529, 10585058, 21170116]

約数ペア:

[(1, 21170116), (2, 10585058), (4, 5292529), (11, 1924556), (22, 962278), (29, 730004), (44, 481139), (47, 450428), (58, 365002), (94, 225214), (116, 182501), (188, 112607), (319, 66364), (353, 59972), (517, 40948), (638, 33182), (706, 29986), (1034, 20474), (1276, 16591), (1363, 15532), (1412, 14993), (2068, 10237), (2726, 7766), (3883, 5452)]