21900214

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 17000522

約数列:

[1, 2, 7, 14, 47, 83, 94, 166, 329, 401, 581, 658, 802, 1162, 2807, 3901, 5614, 7802, 18847, 27307, 33283, 37694, 54614, 66566, 131929, 232981, 263858, 465962, 1564301, 3128602, 10950107, 21900214]

約数ペア:

[(1, 21900214), (2, 10950107), (7, 3128602), (14, 1564301), (47, 465962), (83, 263858), (94, 232981), (166, 131929), (329, 66566), (401, 54614), (581, 37694), (658, 33283), (802, 27307), (1162, 18847), (2807, 7802), (3901, 5614)]