21014721028

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{557}}^1\times {\mathrm{28669}}^1$

素因数の和:29284

約数の個数: 48

約数和(自身を含む): 43002247680

約数和(自身を除く): 21987526652

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 557, 658, 1114, 1316, 2228, 3899, 7798, 15596, 26179, 28669, 52358, 57338, 104716, 114676, 183253, 200683, 366506, 401366, 733012, 802732, 1347443, 2694886, 5389772, 9432101, 15968633, 18864202, 31937266, 37728404, 63874532, 111780431, 223560862, 447121724, 750525751, 1501051502, 3002103004, 5253680257, 10507360514, 21014721028]

約数ペア:

[(1, 21014721028), (2, 10507360514), (4, 5253680257), (7, 3002103004), (14, 1501051502), (28, 750525751), (47, 447121724), (94, 223560862), (188, 111780431), (329, 63874532), (557, 37728404), (658, 31937266), (1114, 18864202), (1316, 15968633), (2228, 9432101), (3899, 5389772), (7798, 2694886), (15596, 1347443), (26179, 802732), (28669, 733012), (52358, 401366), (57338, 366506), (104716, 200683), (114676, 183253)]