21086670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:226

約数の個数: 96

約数和(自身を含む): 57494304

約数和(自身を除く): 36407634

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 37, 55, 66, 74, 110, 111, 121, 157, 165, 185, 222, 242, 314, 330, 363, 370, 407, 471, 555, 605, 726, 785, 814, 942, 1110, 1210, 1221, 1570, 1727, 1815, 2035, 2355, 2442, 3454, 3630, 4070, 4477, 4710, 5181, 5809, 6105, 8635, 8954, 10362, 11618, 12210, 13431, 17270, 17427, 18997, 22385, 25905, 26862, 29045, 34854, 37994, 44770, 51810, 56991, 58090, 63899, 67155, 87135, 94985, 113982, 127798, 134310, 174270, 189970, 191697, 284955, 319495, 383394, 569910, 638990, 702889, 958485, 1405778, 1916970, 2108667, 3514445, 4217334, 7028890, 10543335, 21086670]

約数ペア:

[(1, 21086670), (2, 10543335), (3, 7028890), (5, 4217334), (6, 3514445), (10, 2108667), (11, 1916970), (15, 1405778), (22, 958485), (30, 702889), (33, 638990), (37, 569910), (55, 383394), (66, 319495), (74, 284955), (110, 191697), (111, 189970), (121, 174270), (157, 134310), (165, 127798), (185, 113982), (222, 94985), (242, 87135), (314, 67155), (330, 63899), (363, 58090), (370, 56991), (407, 51810), (471, 44770), (555, 37994), (605, 34854), (726, 29045), (785, 26862), (814, 25905), (942, 22385), (1110, 18997), (1210, 17427), (1221, 17270), (1570, 13431), (1727, 12210), (1815, 11618), (2035, 10362), (2355, 8954), (2442, 8635), (3454, 6105), (3630, 5809), (4070, 5181), (4477, 4710)]