20985399774

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17400829}}^1$

素因数の和:17400904

約数の個数: 24

約数和(自身を含む): 46147001160

約数和(自身を除く): 25161601386

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17400829, 34801658, 52202487, 104404974, 156607461, 313214922, 1165855543, 2331711086, 3497566629, 6995133258, 10492699887, 20985399774]

約数ペア:

[(1, 20985399774), (2, 10492699887), (3, 6995133258), (6, 3497566629), (9, 2331711086), (18, 1165855543), (67, 313214922), (134, 156607461), (201, 104404974), (402, 52202487), (603, 34801658), (1206, 17400829)]