21454356

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 66189312

約数和(自身を除く): 44734956

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 31, 33, 42, 44, 49, 62, 66, 77, 84, 93, 98, 107, 124, 132, 147, 154, 186, 196, 214, 217, 231, 294, 308, 321, 341, 372, 428, 434, 462, 539, 588, 642, 651, 682, 749, 868, 924, 1023, 1078, 1177, 1284, 1302, 1364, 1498, 1519, 1617, 2046, 2156, 2247, 2354, 2387, 2604, 2996, 3038, 3234, 3317, 3531, 4092, 4494, 4557, 4708, 4774, 5243, 6076, 6468, 6634, 7062, 7161, 8239, 8988, 9114, 9548, 9951, 10486, 13268, 14124, 14322, 15729, 16478, 16709, 18228, 19902, 20972, 23219, 24717, 28644, 31458, 32956, 33418, 36487, 39804, 46438, 49434, 50127, 57673, 62916, 66836, 69657, 72974, 92876, 98868, 100254, 109461, 115346, 139314, 145948, 162533, 173019, 200508, 218922, 230692, 255409, 278628, 325066, 346038, 437844, 487599, 510818, 650132, 692076, 766227, 975198, 1021636, 1532454, 1787863, 1950396, 3064908, 3575726, 5363589, 7151452, 10727178, 21454356]

約数ペア:

[(1, 21454356), (2, 10727178), (3, 7151452), (4, 5363589), (6, 3575726), (7, 3064908), (11, 1950396), (12, 1787863), (14, 1532454), (21, 1021636), (22, 975198), (28, 766227), (31, 692076), (33, 650132), (42, 510818), (44, 487599), (49, 437844), (62, 346038), (66, 325066), (77, 278628), (84, 255409), (93, 230692), (98, 218922), (107, 200508), (124, 173019), (132, 162533), (147, 145948), (154, 139314), (186, 115346), (196, 109461), (214, 100254), (217, 98868), (231, 92876), (294, 72974), (308, 69657), (321, 66836), (341, 62916), (372, 57673), (428, 50127), (434, 49434), (462, 46438), (539, 39804), (588, 36487), (642, 33418), (651, 32956), (682, 31458), (749, 28644), (868, 24717), (924, 23219), (1023, 20972), (1078, 19902), (1177, 18228), (1284, 16709), (1302, 16478), (1364, 15729), (1498, 14322), (1519, 14124), (1617, 13268), (2046, 10486), (2156, 9951), (2247, 9548), (2354, 9114), (2387, 8988), (2604, 8239), (2996, 7161), (3038, 7062), (3234, 6634), (3317, 6468), (3531, 6076), (4092, 5243), (4494, 4774), (4557, 4708)]