21460010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 46569600

約数和(自身を除く): 25109590

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 43, 55, 65, 86, 110, 130, 143, 215, 286, 349, 430, 473, 559, 698, 715, 946, 1118, 1430, 1745, 2365, 2795, 3490, 3839, 4537, 4730, 5590, 6149, 7678, 9074, 12298, 15007, 19195, 22685, 30014, 30745, 38390, 45370, 49907, 61490, 75035, 99814, 150070, 165077, 195091, 249535, 330154, 390182, 499070, 825385, 975455, 1650770, 1950910, 2146001, 4292002, 10730005, 21460010]

約数ペア:

[(1, 21460010), (2, 10730005), (5, 4292002), (10, 2146001), (11, 1950910), (13, 1650770), (22, 975455), (26, 825385), (43, 499070), (55, 390182), (65, 330154), (86, 249535), (110, 195091), (130, 165077), (143, 150070), (215, 99814), (286, 75035), (349, 61490), (430, 49907), (473, 45370), (559, 38390), (698, 30745), (715, 30014), (946, 22685), (1118, 19195), (1430, 15007), (1745, 12298), (2365, 9074), (2795, 7678), (3490, 6149), (3839, 5590), (4537, 4730)]