21689580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{557}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 67495680

約数和(自身を除く): 45806100

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 59, 60, 66, 110, 118, 132, 165, 177, 220, 236, 295, 330, 354, 557, 590, 649, 660, 708, 885, 1114, 1180, 1298, 1671, 1770, 1947, 2228, 2596, 2785, 3245, 3342, 3540, 3894, 5570, 6127, 6490, 6684, 7788, 8355, 9735, 11140, 12254, 12980, 16710, 18381, 19470, 24508, 30635, 32863, 33420, 36762, 38940, 61270, 65726, 73524, 91905, 98589, 122540, 131452, 164315, 183810, 197178, 328630, 361493, 367620, 394356, 492945, 657260, 722986, 985890, 1084479, 1445972, 1807465, 1971780, 2168958, 3614930, 4337916, 5422395, 7229860, 10844790, 21689580]

約数ペア:

[(1, 21689580), (2, 10844790), (3, 7229860), (4, 5422395), (5, 4337916), (6, 3614930), (10, 2168958), (11, 1971780), (12, 1807465), (15, 1445972), (20, 1084479), (22, 985890), (30, 722986), (33, 657260), (44, 492945), (55, 394356), (59, 367620), (60, 361493), (66, 328630), (110, 197178), (118, 183810), (132, 164315), (165, 131452), (177, 122540), (220, 98589), (236, 91905), (295, 73524), (330, 65726), (354, 61270), (557, 38940), (590, 36762), (649, 33420), (660, 32863), (708, 30635), (885, 24508), (1114, 19470), (1180, 18381), (1298, 16710), (1671, 12980), (1770, 12254), (1947, 11140), (2228, 9735), (2596, 8355), (2785, 7788), (3245, 6684), (3342, 6490), (3540, 6127), (3894, 5570)]