21620176

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71119}}^1$

素因数の和:71146

約数の個数: 20

約数和(自身を含む): 44094400

約数和(自身を除く): 22474224

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71119, 142238, 284476, 568952, 1137904, 1351261, 2702522, 5405044, 10810088, 21620176]

約数ペア:

[(1, 21620176), (2, 10810088), (4, 5405044), (8, 2702522), (16, 1351261), (19, 1137904), (38, 568952), (76, 284476), (152, 142238), (304, 71119)]