21614956

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:151

約数の個数: 72

約数和(自身を含む): 45849888

約数和(自身を除く): 24234932

約数列:

[1, 2, 4, 11, 17, 22, 34, 37, 44, 68, 71, 74, 121, 142, 148, 187, 242, 284, 374, 407, 484, 629, 748, 781, 814, 1207, 1258, 1562, 1628, 2057, 2414, 2516, 2627, 3124, 4114, 4477, 4828, 5254, 6919, 8228, 8591, 8954, 10508, 13277, 13838, 17182, 17908, 26554, 27676, 28897, 34364, 44659, 53108, 57794, 76109, 89318, 115588, 146047, 152218, 178636, 292094, 304436, 317867, 491249, 584188, 635734, 982498, 1271468, 1964996, 5403739, 10807478, 21614956]

約数ペア:

[(1, 21614956), (2, 10807478), (4, 5403739), (11, 1964996), (17, 1271468), (22, 982498), (34, 635734), (37, 584188), (44, 491249), (68, 317867), (71, 304436), (74, 292094), (121, 178636), (142, 152218), (148, 146047), (187, 115588), (242, 89318), (284, 76109), (374, 57794), (407, 53108), (484, 44659), (629, 34364), (748, 28897), (781, 27676), (814, 26554), (1207, 17908), (1258, 17182), (1562, 13838), (1628, 13277), (2057, 10508), (2414, 8954), (2516, 8591), (2627, 8228), (3124, 6919), (4114, 5254), (4477, 4828)]