20804563178

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{68993}}^1$

素因数の和:69207

約数の個数: 48

約数和(自身を含む): 38650162824

約数和(自身を除く): 17845599646

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 181, 238, 362, 833, 1267, 1666, 2534, 3077, 6154, 8869, 17738, 21539, 43078, 68993, 137986, 150773, 301546, 482951, 965902, 1172881, 2345762, 3380657, 6761314, 8210167, 12487733, 16420334, 24975466, 57471169, 87414131, 114942338, 174828262, 212291461, 424582922, 611898917, 1223797834, 1486040227, 2972080454, 10402281589, 20804563178]

約数ペア:

[(1, 20804563178), (2, 10402281589), (7, 2972080454), (14, 1486040227), (17, 1223797834), (34, 611898917), (49, 424582922), (98, 212291461), (119, 174828262), (181, 114942338), (238, 87414131), (362, 57471169), (833, 24975466), (1267, 16420334), (1666, 12487733), (2534, 8210167), (3077, 6761314), (6154, 3380657), (8869, 2345762), (17738, 1172881), (21539, 965902), (43078, 482951), (68993, 301546), (137986, 150773)]