21900136

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{379}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 42681600

約数和(自身を除く): 20781464

約数列:

[1, 2, 4, 8, 31, 62, 124, 233, 248, 379, 466, 758, 932, 1516, 1864, 3032, 7223, 11749, 14446, 23498, 28892, 46996, 57784, 88307, 93992, 176614, 353228, 706456, 2737517, 5475034, 10950068, 21900136]

約数ペア:

[(1, 21900136), (2, 10950068), (4, 5475034), (8, 2737517), (31, 706456), (62, 353228), (124, 176614), (233, 93992), (248, 88307), (379, 57784), (466, 46996), (758, 28892), (932, 23498), (1516, 14446), (1864, 11749), (3032, 7223)]