20931388

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{9497}}^1$

素因数の和:9549

約数の個数: 24

約数和(自身を含む): 39891600

約数和(自身を除く): 18960212

約数列:

[1, 2, 4, 19, 29, 38, 58, 76, 116, 551, 1102, 2204, 9497, 18994, 37988, 180443, 275413, 360886, 550826, 721772, 1101652, 5232847, 10465694, 20931388]

約数ペア:

[(1, 20931388), (2, 10465694), (4, 5232847), (19, 1101652), (29, 721772), (38, 550826), (58, 360886), (76, 275413), (116, 180443), (551, 37988), (1102, 18994), (2204, 9497)]