20396908

素因数分解:

$2^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4889}}^1$

素因数の和:5049

約数の個数: 24

約数和(自身を含む): 41076000

約数和(自身を除く): 20679092

約数列:

[1, 2, 4, 7, 14, 28, 149, 298, 596, 1043, 2086, 4172, 4889, 9778, 19556, 34223, 68446, 136892, 728461, 1456922, 2913844, 5099227, 10198454, 20396908]

約数ペア:

[(1, 20396908), (2, 10198454), (4, 5099227), (7, 2913844), (14, 1456922), (28, 728461), (149, 136892), (298, 68446), (596, 34223), (1043, 19556), (2086, 9778), (4172, 4889)]