21568271452

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{147031}}^1$

素因数の和:147099

約数の個数: 72

約数和(自身を含む): 48217085952

約数和(自身を除く): 26648814500

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 169, 182, 217, 338, 364, 403, 434, 676, 806, 868, 1183, 1612, 2366, 2821, 4732, 5239, 5642, 10478, 11284, 20956, 36673, 73346, 146692, 147031, 294062, 588124, 1029217, 1911403, 2058434, 3822806, 4116868, 4557961, 7645612, 9115922, 13379821, 18231844, 24848239, 26759642, 31905727, 49696478, 53519284, 59253493, 63811454, 99392956, 118506986, 127622908, 173937673, 237013972, 347875346, 414774451, 695750692, 770295409, 829548902, 1540590818, 1659097804, 3081181636, 5392067863, 10784135726, 21568271452]

約数ペア:

[(1, 21568271452), (2, 10784135726), (4, 5392067863), (7, 3081181636), (13, 1659097804), (14, 1540590818), (26, 829548902), (28, 770295409), (31, 695750692), (52, 414774451), (62, 347875346), (91, 237013972), (124, 173937673), (169, 127622908), (182, 118506986), (217, 99392956), (338, 63811454), (364, 59253493), (403, 53519284), (434, 49696478), (676, 31905727), (806, 26759642), (868, 24848239), (1183, 18231844), (1612, 13379821), (2366, 9115922), (2821, 7645612), (4732, 4557961), (5239, 4116868), (5642, 3822806), (10478, 2058434), (11284, 1911403), (20956, 1029217), (36673, 588124), (73346, 294062), (146692, 147031)]